WSU CONH STUDY GUIDE FOR NLN PHARMACOLOGY EXAM (REVISED 6/3/2013) 1
NLN Pharmacology Study Guide
There is no official study guide for the NLN Pharmacology Exam. This guide is not meant to be all-inclusive of the information you will need to know to successfully pass the NLN Pharmacology exam. You should utilize other resources as necessary to prepare for the exam. Please note that after taking the exam, NLN provides access to review resources on-line.
The test is composed of 100 scored questions plus some trial questions (about 25). You will not know which are which. All are multiple choice questions, including calculations.
Content is divided in three areas on the exam: calculations, principles of medication administration and medication effects. They are pretty evenly divided. The questions are very similar to the NCLEX questions. You should also use traditional NCLEX test- taking tips to prepare for this exam also.
References: Pearson nursess drug guide. (2013). Upper Saddle River, NJ: Pearson. Silvestri, L. A. (2011). Saunders comprehensive review for the NCLEX-RN examination. St. Louis, MO: Mosby. Adams, M. P. & Urban, C. Q. (2013). Pharmacology: Connections to nursing practice (2 nd ed.). Upper Saddle River, NJ: Pearson.
Calculations Please remember this is about 1/3 of the pharmacology exam. It may be beneficial for you to practice calculations and/or review a nursing math book to help prep. You may not have used all the calculation methods recently. Questions may include one or more type of calculation. Tips: 1. READ CAREFULLY. Always be sure you know what the end result should be (mg, pills, ml, etc.). This can help you select the correct formula and eliminate unnecessary information. 2. Double (and triple) check actual math. Did you clear the calculator correctly? 3. Does the answer make sense? 4. There are both adult and pediatric calculations. 5. Watch per dose, per day. 6. How you calculate the answer does not matter (desired over have, ratio : proportion, etc.); accuracy does. WSU CONH STUDY GUIDE FOR NLN PHARMACOLOGY EXAM (REVISED 6/3/2013) 2 2Common calculations include (but are not limited to): 1. Kg to mg to mcg conversion (any which way) L K H D M D C M - - mcg G liter (kilo hecto deca meter deci centi milli skip skip micro) gram 2. Dosage calculations a. Tablets b. mg. to tablets c. mg. to ml d. units to ml e. kg to ml f. Half-life calculation g. IV rate calculation (hourly infusion rate) AND adjustment h. IV rate dosage calculation (based on units per ml, etc.) i. Macro- vs. micro-drop tubing j. Calculating drops/minute (gtts/min) Examples: (abbreviated to type of question; exam will add extra information) 1. Have 5 mg tablets; ordered dose 2.5 mg. How many tablets will the nurse administer? 2. Have 2 mg/2 ml; order is 1 mg. How many milliliters will the nurse administer? 3. Prepare a 20 mEq dose of a medication. Available solution is 40 mEq/10 ml. How many ml will be administered? Note: calculation method is not different in examples 1 - 3, just the unit of measure (mg, units, mEq, etc.). BE SURE AVAILABLE AND HAVE ARE THE SAME UNIT OF MEASURE. 4. Half-life conversion: Half-life is known to be 2 hours. What percentage will be left in the body after six hours? 5. A person weighs 165 lbs. How many kg does the person weigh? WSU CONH STUDY GUIDE FOR NLN PHARMACOLOGY EXAM (REVISED 6/3/2013) 3 6. The available medication has been reconstituted to 250 mg/5 ml. The order is 5 mg/kg/daily in two evenly divided doses. Child weight 44 pounds. How many milliliters will be administered per dose? NOTE: More than one calculation method must be used to answer this question. 7. IV was ordered at 1000 ml over 8 hour period. After two hours, only 900 ml has infused. Calculate the new infusion rate for the medication to be administered within the original 8 hour period. 8. Order is for 3000 cc over a 24-hour period. What is the hourly flow rate? OR: What will the pump be set at per hour? 9. Order is for antibiotic to be mixed in 50 ml NS and administered over 45 minutes. What is the hourly flow rate? OR: What will the pump be set at per hour? 10. Volume is 1000 ml. Ordered infusion time is 8 hours. Have tubing of 15 drops/ml. How many drops need to be counted to deliver the identified milliliters per minute? 11. Available solution = 25,000 units in 250 ml NS. Order is to administer at 22 ml/hour. How many units will be given per hour? 12. Available solution = 25,000 units in 250 ml NS. Administer at 2000 units/hour. How many ml will be given be hour? OR: What will the pump be set at per hour? Principles of Pharmacology These include the basics! Review: 1. Routes of administration benefits and problems 2. Sizes of needles and syringes for injections 3. Six Rights of Medication Administration; Three Checks 4. Side effects; adverse effects; paradoxical reactions; toxicity; antagonists 5. Half-life calculation 6. Allergic or hypersensitivity reactions 7. Absorption, metabolism, distribution and excretion 8. There may be questions on lab values as relevant. 9. There are pediatric and adult questions. 10. Immunosuppression precautions (due to meds for cancer, HIV/AIDS, etc.) WSU CONH STUDY GUIDE FOR NLN PHARMACOLOGY EXAM (REVISED 6/3/2013) 4 Administration routes: some key points Sublingual administration absorbed in mucosa of oral cavities rapid onset of action Place tablet on floor of mouth, close mouth. Do not swallow, hold under tongue until dissolve. Use spray on floor of mouth under tongue and close mouth. Buccal place tablet between gum and cheek near back of mouth, close mouth and keep in place until dissolve slower to dissolve and absorb than sublingual Intramuscular injections Given in the vastus lateralis in children up to 3 Spread skin taught to bring muscle near surface of skin, with dart-like motion insert needle at 90 degrees Aspirate to determine if needle enter a blood vessel. If there is blood return discard the needle and meds and start procedure over. NGtube / Gtube NG usually temporary; G-tube for longer term Follow instructions re crushing, dissolving medication no sustained release meds Eye drop administration Clean exudates from eye; (2) tilt head toward side of affected eye; (3) pull lower eyelid down; (4) have pt. look up; (5) instill drops in conjunctival sac formed by lower lid (not onto the eye); (6) Apply gentle pressure for 30 sec to 1 min over inner cantus next to nose (this prevents absorption through the tear duct and drainage of the medication). Close eyes gently massage the eyes to distribute the meds. Slow absorption except in infants where they readily absorb EYE OINTMENT Same as eye drop except it is expressed directly into the conjunctival sac from the inner canthus to the outer canthus. Close eyes and gently massage to distribute the medication
WSU CONH STUDY GUIDE FOR NLN PHARMACOLOGY EXAM (REVISED 6/3/2013) 5 Definitions: Agranulocytosis / Neutropenia / agranulocytopenia Definition: Acute decrease in the number of granulocytes/leukopenia (WBC) in peripheral blood Causes include: treatment with broad spectrum PCN, sulfonamides or cephalosporin (piperacillin, tazobactam, cetazidime, ticarcillin, gentamycin), bone marrow transplant, chemotherapy, radiation. Generally is impaired resulting from bone marrow depression by drugs and chemicals or replacement by a neoplasm(oral lesion, ulcer necrotic, gingivitis, buccal mucosa Lymphadenopathy, lymphadenitis may be prevalent. Could lead to respiratory infection, ulceration of mouth colon, high fever, UTI. But may be asymptomatic Chelating agents A form of detoxification Chelating therapy involves an injection or oral administration of ethylene diamine Tetra acetic avide (a synthetic amino acid which attaches to toxic substance such as lead, cadmium, aluminum and other metal in the blood to facilitate their removal from the body.) May be used to treat hardening of the arteries, heart attack, stroke, arthritis and gangrene because of its ability to remove excess calcium from the body. EDTA: Ethylenediaminetetraacetic acid Use in children with lead level between 45&70 micron/dl. EDTA binds to lead in blood and excreted by the bowel and kidney. EDTA may be toxic to kidney. Monitor urine output. Give this by IV. Dose depends on weight of child, severity of the poison. Agent is given every 4 hours for 5 days. A second course may be needed if there is a rebound in the blood level. Give oral and IV fluid to enhance excretion Do not use EDTA with hypocalcemia or hypokalemia. OTHER AGENTS British antiLewisite (BAL) does not give with iron supplement and avoid in pt. with plant allergy. Give this by IM Succimer (Chemer) Chemet oral medication - Do not give in pt. with encephalopathy Epistaxis Nose bleed. Can be anterior or posterior. Posterior is more serious. due to rupture of blood vessels within richly perfuse nasal mucosa spontaneous or initiated by trauma blood can come up through the eye, can also flow down the stomach causing nausea, vomiting WSU CONH STUDY GUIDE FOR NLN PHARMACOLOGY EXAM (REVISED 6/3/2013) 6 Treat epistaxis cauterization with silver nitrate, calcium alginate mesh, nasal cavity packed with sterile dressing ribbon gauze, absorbent dressing or saline sprayed into the nose Ice pack to forehead or back of the neck pinch septum of nose for 5 minutes Do not pack nose with tissue or gauze Half-life The time it takes for a medication to lose half of its pharmacologic or physiologic effect To calculate half-life: There is a formula but the easiest way to decrease count. Example: half- life is 1 hour. Start 100% 1 hr. 50% 2 hrs. 25% 3 hrs. 12.5% 4 hrs. 6.25% Question Half-life of xyz medication is 1 hour. After 3 hours, what percentage of the medication will be left? A = 12.5% Osmotic agent - see entry under Mannitol Paradoxical reaction A response to a drug (or medical treatment) that is the opposite to the usual response, such as agitation produced in an individual patient by a drug which is ordered to sedate or calm a person. Sustained release / time released / extended release / controlled release Pills or capsule formulated to dissolve slowly and release drug over time. They can often be taken less frequently, keep steadier levels of the drug in the bloodstream Contain in a matrix of insoluble substance (e.g. Acrylics) the drug swells up to form a gel so that the drug has first to dissolve in matrix then exit through the outer surface. Cannot be crushed, dissolved or opened
WSU CONH STUDY GUIDE FOR NLN PHARMACOLOGY EXAM (REVISED 6/3/2013) 7 Medication Effects There is a bit of an overlap here with Principles of Pharmacology. These questions tend to be medication (or classification) specific. There are many medications on the test and many could be. As applicable, both brand and generic names are used. We recognize the attached grid is very lengthy, but have included some of the key components as identified below. Most medications addressed are either high usage or high risk. Please note that auto-corrections will change generic names to starting with caps. In the grid, we have tried to list generic first, then brand names. Areas to know: 1. Use, dose, side effects, contraindications 2. Since there are a limited number of questions, not all medications are addressed. You may be asked to select which medication would be given for a particular diagnosis. When studying, focus on the classifications this may enable you to answer without knowing the actual medication. 3. Focus on what are the major side effects of a medication or class? What makes it high risk? Why might one particular med be used other than another? 4. Patient teaching is a major focus. What would you tell the patient about the medication? What would indicate understanding? What would indicate need for further teaching? Common classification of medications Note letters in medication name and look for those letters that identify a particular classification: Androgens: end with terone: testosterone (Testoderm) ACE Inhibitors: end with pril: enalapril (Vasotec) Antidiuretic hormones: end with pressin: desmopressin (DDAVP) Antilipidemic: end with statin: atorvastatin (Lipitor) Antiviral: contain -vir: ritonavir (Norvir) WSU CONH STUDY GUIDE FOR NLN PHARMACOLOGY EXAM (REVISED 6/3/2013) 8 Benzodiazepines: include alprazolam (Xanax), chlordiazepoxide (Librium), clorazepate (Tranxene), estazolam (ProSom), and triazolam (Halcion). Most others end with pam: diazepam (Valium) Beta Blockers: end with lol: atenolol (Tenormin) CCB: end with pine: amlodipine (Norvasc); some exceptions include diltiazem (Cardizem), verapamil (Isoptin) Carbonic anhydrase inhibitors: end with mide: acetazolamide (Diamox) Estrogens: contain est: conjugated estrogen (Premarin) Glucocorticoids and corticosteroids: end with sone: prednisone (Deltasone) Histamine H 2 receptor antagonists: end with dine: cimetidine (Tagamet) Nitrates: contain nitr: nitroglycerin (Nitrostat) Pancreatic enzyme replacements: contain pancre: pancrelipase (Pancrease) Phenothiazines: end with zine: chlorpromazine (Thorazine) Proton Pump Inhibitors: end with zole: lansoprazole (Prevacid) Sulfonamides: include sulf: sulfasalazine (Azulfidine) Thiazide diuretics: end with zide: hydrochlorothiazide (HydroDIURIL) Thrombolytics: end with -ase: alteplase (Activase) Thyroid hormones: contain thy: levothyroxine (Synthroid) Xanthine bronchodialators: end with line: theophylline
WSU CONH STUDY GUIDE FOR NLN PHARMACOLOGY EXAM (REVISED 6/3/2013) 9 Specific Diseases or treatments: Aminoglycoside antibiotics - Treats serious life threatening gram negative (and some positive) infections
All aminoglycoside ends Mycin but not all drugs that ends in Mycin are aminoglycosides such as (Erythromycin and azithromycin) Examples: Gentamycin Tobramycin Vancomycin Neomycin
Generally IM or IV. Oral route is not recommended. It is only use for bowel prep prior to surgery (see Neomycin)
Adverse effects/toxicity: Two most common MAJOR adverse effects: Nephrotoxicity and ototoxicity. Also: Photosensitivity risk for superinfections Pseudomembranous colitis (c-diff): stop med and treat with PO Flagyl
Peak level: Drawn 15-30 min after the infusion is completed. Peak concentration determines that toxic level does not occur. If peak is too high, may reduce dose. Trough level: Drawn immediately (within 30 minutes) before next IV dose Assures that therapeutic level of drug is maintained. Trough level is 1-2 g/ml between doses. Dose will be adjusted if level is not sustained
WSU CONH STUDY GUIDE FOR NLN PHARMACOLOGY EXAM (REVISED 6/3/2013) 10 Blood administration Start blood transfusion slow 2 ml/min. Remain with pt. for the first 15-30 min. if there is no sign of side effect, increase rate to the desired rate Administer using largest gauge IV access as possible. Observe for acute reaction such as: allergic s/s rash, itching, localized edema; febrile (even low grade); septic; air embolism; circulatory overload. Observe for delayed reaction: Graft vs. host; hepatitis; hemolysis
Crack abuse effect on newborns Crack crosses the placenta and enters the fetus. Common presentation: Infant may appear normal or develop neurological problem. Child may develop depression or excitability, they may be lethargy, have poor suck; weak cry and difficulty in arousing, hypotonicity, rigidity, irritability, inability to console and intolerance to change, small head, decreased birth length Late symptoms: Some infant showed late symptoms 2-8 wks. There may be growth retardation - head growth is one of the best indication
Diabetes treatment in children Hypoglycemic reaction takes place most time before meals or when insulin effect is peaking. First teaching: (1) let child wear bracelet or tag; (2) Teach how to give injection. Inject at 90 degree angle. Teach only the essentials on the first few visits and intense later. Keep session for children to 14-20 min and adult may go up to 45-60 Have same meal as normal child time intake of food. Eat at the same time each day. Children can start learn to assume responsibility for self-management as soon as age 4-5. At age 9, they can start giving their own insulin with supervision. Exercise: do not restrict exercise. Have extra snack before and after exercise. Exercise very regularly as it decreases the need for insulin Carry a source of glucose at all times (hard candy, sugar cubes glucose tablets, insta glucose). The rapid releasing sugar is followed by complex CHO and protein such as slice of bread or cracker spread with peanut butter After glucagon injection, vomiting may occur. Place child on the side to prevent aspiration. Preferred way of treating ketoacidosis is by insulin IV of low dosing. Note. Run a mixture of insulin through the tubing before starting the drip because the insulin can chemically bind to plastic. Replace fluid over 24-48 hrs. WSU CONH STUDY GUIDE FOR NLN PHARMACOLOGY EXAM (REVISED 6/3/2013) 11 Diabetes Intravenous insulin administration Can only be done with regular insulin in management of DKA, HHNK. Premature discontinuation can cause prolongation of DKA. Begin SQ insulin therapy before stopping the infusion. If not, there might be prolonged hyperglycemia. Hepatitis see below HIV treatment antiretinoviral therapy Common meds: abacavir (ziagen) stavudine (Zerit) zidovudine (AZT)
Antiviral protease inhibitor. End in AVIR Use prophylactically. Use in combination to decrease viral load and increase CD4. Reverse transcriptase inhibitors: Ends in INE Stop replication/growth. Reduces viral load. One major advantage is that they do not affect adversely affect development of blood cells. Use in combination with other meds because resistant strains may rapidly evolve if used as single agent therapy. Inhibit cell protein synthesis that interfere with viral replication; block protease activity in HIV. Treat AIDS and AIDS-related complex to decrease viral load Side effects: Assess for opportunistic infection (cancer, neurological disease); HA, fatigue, nausea, vomiting, diarrhea, abdominal discomfort, anemia, taste perversion, asthenia, circumoral paresthesia with ritonivair, Adverse/toxicity Hepatoxicity, Hepatotoxicity: AST, ALT, bilirubin; observe for nausea, vomiting jaundice upper right abdominal quad enlargement and tenderness. Reduce dose in liver dysfunction. Nephrotoxicity; creatinine, BUN, creatinine clearance, urinalysis, keep accurate I& O, monitor for SE of neutropenic, observe occult signs of infection. (lower back, flank or suprapubic pain, normal temp or low grade fever related to UTI
START therapy: (1) all symptomatic HIV people (presenting with a AIDS-defining illness) or (2) with a CD4 count less than 350 mm 3 . (3) also start pregnant women (AZT is used to prevent maternal transmission of HIV) STOP if severe rash or other hypersensitivity reaction occurs. Excluding reaction to medications and/or ineffectiveness of medication, treatment will be long-term.
TEACH Use neutropenic precautions Eat small frequent meals with complete or complementary proteins
WSU CONH STUDY GUIDE FOR NLN PHARMACOLOGY EXAM (REVISED 6/3/2013) 12 Inotropic medications: Positive inotropic meds increase cardiac contractility examples: epinephrine, norepinephrine, dopamine Negative inotropic meds decrease cardiac contractility, lower BP: examples quinidine; betablockers (most end in olol) Sulfonamides
Anti-infective. Bacteriostatic which action on bacteria results from interference with the functioning of enzyme systems necessary for normal metabolism, growth and multiplication Treat: UTI, Chlamydia causing blindness, pneumonia, brain abscess, ulcerative colitis, active Crohns disease, rheumatoid arthritis Examples: Bactrim Side effects: Rash common; most are urticaria and maculopapular. GI symptoms Bone marrow depression Headache, dizziness, vertigo, ataxia, convulsion, depression Adverse effects/toxicity: Hepatotoxicity Nephrotoxicity Stevens Johnson syndrome (an adverse reaction of skin that resembles appearance of partial thickness burns) CAUTION: do not use: known allergies to sulfa drugs In polyuria, advanced renal or hepatic dysfunction with intestinal and urinary blockage, asthma
Take adequate amount to fluid 3000- 4000ml/day to promote urinary output, at least 1500ml/d to prevent crystalluria/stone formation May be taken after meals to prolong time in intestine. Collect C&S prior to beginning therapy Thiazide diuretics: Examples: chlorothiazide (Hydrodiuril), hydrochlorothiazide (HCTZ, Diuril) Name ends in ZIDE non-potassium sparing diuretic. Acts on distal tubes, blocks reabsorption of sodium, chloride and water. Leads to increased loss of Potassium. Use for edema and mild to moderate hypertension will see effect of within 1-4 wks. Side effects: Dizziness, vertigo, HA, weakness, dehydration, orthostatic hypotension N/V, abdominal pain, diarrhea, constipation, frequent urination dermatitis and rash Electrolyte imbalance impaired glucose tolerance Adverse effects/toxicity: Renal failure, aplastic anemia, agranulocytosis, thrombocytopenia anaphylactic reaction Take early in the day to avoid nocturia Take with food to avoid GI upset. Thiazide is ineffective if creatinine clearance is < 30ml/min Eat foods high in potassium, restrict sodium, do not use salt substitute if taking potassium supplement weigh self daily, report sudden weight gains or losses Avoid use with: Children anuria WSU CONH STUDY GUIDE FOR NLN PHARMACOLOGY EXAM (REVISED 6/3/2013) 13 Tricyclic Antidepressants
Initial mechanism of TCA takes 1-3 weeks to develop. Maximum response is achieved in 6-8 wks. Has long half-life.
Most Tricyclics ends in INE nortriptyline (Pamelor) amitriptyline (Elavil) doxepin (sinequan) imipramine (tofranil)
Block the reuptake of norepinephrine or serotonins or both, leaving more available in the CNS. It intensifies the effect of norepinephrine and serotonin which can elevate mood, increase activity and alertness, decrease preoccupation with morbidity, improve appetite and regulate sleep pattern. It is used to treat insomnia, attention deficit/hyperactivity and panic disorder. Side effects: orthostatic hypotension, sedation and anticholinergic effects. Adverse effects/toxicity: Most serious adverse effect is cardiac toxicity; in the absence of overdose or preexisting cardiac impairment, serious cardiotoxicity is rare. URINARY RETENTION IS URGENT Overdose may cause convulsions
Take at nights, it causes sedation. Do not take with MAO it will cause hypertensive crisis from excessive adrenergic stimulation of the heart and blood vessels, monitor orthostatic BP of pt. in hospital
Use with caution: Glaucoma Elderly constipation, prostatic hyperplasia, as they are more sensitive to anticholinergic effect
Avoid use with: hypersensitivity, MI, Cardiovascular disease Vesicant Chemotherapy See precautions under Vincristine
Hepatitis: inflammation of liver caused by virus, bacteria or exposure to meds or hepatotoxins Stages of viral hepatitis: (1) Pre-icteric precedes appearance of jaundice, may have flulike symptoms (2) Icteric appearance of jaundice, elevated bilirubin, dark or tea colored urine, clay-colored stools (3) Post-icteric convalescent stage; jaundice improves; color of urine and stool returns to normal WSU CONH STUDY GUIDE FOR NLN PHARMACOLOGY EXAM (REVISED 6/3/2013) 14 Hepatitis A (formerly infectious hepatitis)
Cause: enterovirus
At risk: Young children Institutionalized people Health care personnel Transmission: fecal-oral ingestion of food or liquids contaminated with the virus. person by person contact
Incubation: 3-5 wks. Infectious: usually 2 wks. before the onset of jaundice and 1 wk. after onset of jaundice.
s/s: May have no symptoms initially.
Complications: Fulminant hepatitis Hepatitis B.
At risk: IV drug users People on Hemodialysis Health care personnel
Transmission: blood and body fluids contaminated needles, parenteral sexual activity
Incubation: 6-24 weeks
s/s: progression of symptoms is more insidious and prolonged than Hep A virus. Initially may be asymptomatic. 1 week -2 months of Prodromal symptoms: fatigue, anorexia, transient fever, abdominal Hepatitis C
At risk: IV drug users People receiving frequent transfusions Healthcare personnel
Transmission: Same as Hep B Blood and body fluids
Incubation period: 5-10 weeks
s/s: similar to HBV but often less severe.
Complications: chronic liver disease Cirrhosis.
Hepatitis D
Cause: Occurs only with Hepatitis B and only causes problems with an acute HepB infection.
At risk: common in Middle east, south Africa and Mediterranean same as HepB
Transmission: same as Hepatitis B.
Incubation period: 7-8 weeks
HepD along with HepB causes superinfection and worsening of condition and rapid progression of cirrhosis Complications: As per Hep B Hepatitis E
Cause: waterborne virus
At risk: Travel to areas where sewage disposal is inadequate and/or people bathe in contaminated rivers At higher risk with higher mortality: women in third trimester of pregnancy
Transmission: Same as HepA
Incubation: 2-9 weeks
Complications: Maternal and fetal demise WSU CONH STUDY GUIDE FOR NLN PHARMACOLOGY EXAM (REVISED 6/3/2013) 15 death
discomfort N/V, HA. Then expanding to: Hepatic S/S, photophobia, angioedema, rash, vasculitis, jaundice in Icteric phase
Complication: Cirrhosis Fulminant hepatitis
A grid follows with a listing of medications that may be on the exam.
WSU CONH STUDY GUIDE FOR NLN PHARMACOLOGY EXAM (REVISED 6/3/2013) 16 Drug Use and dosage Side effect Teaching and labs contraindication Acetylsalicylic acid (Aspirin)
Non-narcotic analgesic Antipyretic Antiplatelets
Blocks pain impulse in peripheral and some CNS; antipyretic result; inhibit platelets aggregation
Treat TIA, Post MI, Stroke, angina Increases coagulation times Reyes syndrome (encephalopathy and fatty liver), GI bleed, tinnitus, liver toxicity (dark urine, clay stool, itching, yellowing sclera and skin), visual changes Monitor coagulation studies Take with full glass of water, milk for food to prevent stomach upset Do not crush enteric coated given daily (81-325 mg) for cardiac prophylaxis post MI, stents, strokes, etc. Do not use with: children under 12 and/or children or teenagers with chicken pox or flu like symptoms (because of risk of Reyes syndrome); pregnancy in 3 rd
trimester; and vitamin K deficiency
Activated charcoal (Actidose)
Antidote Adsorbent
Treat poison and overdose following oral ingestion. Binds to poison and prevent its absorption by the GI tract and then eliminates in the feces. Administer within 60 minutes of ingestion. Give once or twice depending on the level of toxin. May come pre- mixed with water 12.5-25 grams Vomiting with rapid administration pulmonary aspiration Binding is irreversible so cathartic such as sorbitol may be added as well. It allows certain drugs/toxins to be drawn out of the blood and bind to charcoal in the intestine a kind of gut dialysis Stools will be black Charcoal does not change the stomach PH.
Do not administer with Ingestion of: caustic alkali agent, high viscosity petroleum products OR when: convulsions are occurring, cardiac dysrhythmias are present, or there is emesis of blood Implement antidote supportive care and prevent aspiration are if gastric lavage is not to be performed. WSU CONH STUDY GUIDE FOR NLN PHARMACOLOGY EXAM (REVISED 6/3/2013) 17 Drug Use and dosage Side effect Teaching and labs contraindication Acyclovir (Zovirax)
Used for herpes simplex. Does not eradicate latent herpes. It reduces viral shedding and formation of new lesions and speeds healing time. (oral, IV and topical) To decrease symptoms with varicella zoster (chicken pox/ shingles). Side effects: Headache, dizziness seizure nausea, vomiting, diarrhea acute renal failure thrombocytopenia purpura hemolytic uremia syndrome
Adverse effects/toxicity: nephrotoxicity Even after HSV infection is controlled, latent virus can be activated by stress, trauma, fever exposure to sunlight, sexual intercourse. Refrain from sex if S/S of herpes.
Alteplase recombinant (Activase)
Streptokinase is similar. Urokinase is given mostly in emergency situation.
Thrombolytic agent
Cath-flo Activase is for occluded catheters
Dissolves or break down clots to reestablish perfusion. Indicated for clients at risk for developing thrombus with resultant ischemia such as MI, ischemic stroke, arterial thrombosis, DVT, PE occlusion of IV catheters. Hemorrhage, N/V, hypotension cardiac dysrhythmias.
Dose related is the highest problem Watch for s/s bleeding; VS changes, s/s of impending shock If bleeding is occurring stop treatment and notify doctor. May start on FFP and PRBC. Aminocaprionic acid (Amicar) may be ordered for overdose or excessive bleeding.
Do not give with: pregnancy, active bleeding, recent Hx of CVA, Uncontrolled HTN,
IM medication route is contraindicated when using thrombolytics.
Do not take NSAIDs or Aspirin because of enhanced bleeding. WSU CONH STUDY GUIDE FOR NLN PHARMACOLOGY EXAM (REVISED 6/3/2013) 18 Drug Use and dosage Side effect Teaching and labs contraindication Aluminum hydroxide (Amphogel)
Antacid
Neutralizes gastric acid, antflatulent to alleviate symptoms of gas and bloating Increases gastric pH, Decreases absorption of other drugs such as dig, antibiotic, iron supplement. Toxicity causes dementia, Hypercalcemia, metabolic alkalosis, worsening of HTN, heart failure from increased intake. Given 2 hrs. apart from other drugs where interaction may occur. Observe for signs and symptoms of altered phosphate levels; anorexia, muscle weakness and malaise. Increase fluid, exercise and fiber to prevent constipation. Do not use: abdominal pain, N/V, diarrhea, severe renal dysfunction, fecal impaction, rectal bleeding, colostomy, ileostomy dehydration hypercalcemia and hypercalciuria Ampicillin (Ampicin)
IV, PO, IM.
Antibiotic Aminopenicillin
Similar side effects, allergic reaction, etc. for all Penicillins (PCN)
Treat bacterial infection Commonly used with: Shigella, salmonella, Escherichia coli, haemophilus influenza, Neisseria gonorrhea, Neisseria meningitis, gram positive organism allergic reaction: Skin rash, urticaria, swelling, pruritus, angioedema. Severe allergy: hives, wheezing, anaphylactic reaction. Medical emergency requires immediate tx or can lead to death. side effects: GI, N/V, diarrhea, abdominal pain. Pruritic rash like measles is not a true allergic reaction Do not give with fruit juice, milk or carbonated beverages because of poor absorption. Watch for hypokalemia Take on empty stomach. May not be necessary to stop treatment if mild diarrhea develops. Give yogurt or buttermilk to restore normal flora (or probiotics) Avoid with: Hypersensitivity to any penicillins; use cautiously if history of hypersensitivity to cephalosporins; Exfoliated dermatitis
Loop diuretic may exacerbate hypokalemia and rash. Potassium-sparing diuretic may contribute to hyperkalemia WSU CONH STUDY GUIDE FOR NLN PHARMACOLOGY EXAM (REVISED 6/3/2013) 19 Drug Use and dosage Side effect Teaching and labs contraindication Atropine Sulfate.
Two different uses:
Anticholinergic (such as for Parkinsons disease) For ophthalmic use
Systemic effect is more pronounced in infant and children with blue eyes and blond hair. Also increased risk of toxicity with Down syndrome
Use to increase heart rate (not necessarily first drug of choice). Decreases involuntary movement and rigidity in Parkinsons disease Pre-op to decrease secretions and prevent aspiration of secretions while under anesthesia
Use for inflammation of the iris and uveal tract. Dry mouth, constipation, urinary retention or hesitancy headache, dizziness Adverse effects/toxicity: Paralytic ileus. Treat overdose (resp. depression and circulatory collapse) symptomatically.
Adverse effect when used for the eye Transient stinging, increase IOP, photophobia,
Monitor dosage of meds carefully, even slight overdose can lead to toxicity. Assess for constipation and urinary retention; increase fluids, bulk and exercise, assess bowel sound to rule out paralytic ileus, Avoid driving or other hazardous activities, drowsiness may occur. For the Eye Acute glaucoma can be precipitated by papillary dilation; if not recognized and treat, acute glaucoma can result in blindness. Wear dark sunglass and avoid bright light for photophobia, Monitor intraocular pressure and vision Increased anticholinergic effect with phenothiazine, antidepressant, MAOs amantadine.
Contraindicated in pt. with narrow angle glaucoma, myasthenia gravis, or GI obstruction. WSU CONH STUDY GUIDE FOR NLN PHARMACOLOGY EXAM (REVISED 6/3/2013) 20 Drug Use and dosage Side effect Teaching and labs contraindication Beclomethasone diproprionate (Beclovent)
inhaled corticosteroid medication
note: also nasal inhalant as Beconase
Used in bronchial asthma, allergic rhinitis
Side Effects: Pharyngeal irritation and sore throat, coughing, dry mouth, oral fungal infections, and sinusitis.
Increased susceptibility to infection, dermatologic effects and osteoporosis, diarrhea, N/V, HA, fever, dizziness angioedema rash urticaria and paradoxical bronchospasm
Adverse effects/toxicity Adrenocortical insufficiency fluid and electrolyte disturbances, nervous system effects and endocrine effects if absorbed systemically. Decrease dose if pt. is on systematic corticosteroid. Assess for impaired bone growth in children receiving inhaled corticosteroid Considerations: Monitor for hyperglycemia Rinse mouth after use for medication; oropharyngeal candidiasis and/or hoarseness can occur. Use bronchodilator inhalant before corticosteroid when both are ordered. Do not abruptly stop meds taper over 2 weeks. Be aware of steroids symptoms - Moon face, acne, edema, increased fat pads - notify doctor. Report weight gain Do not use with: children under Clients with known allergy
May require adjustment of antidiabetic agent as there is a potential for elevated blood glucose levels with corticosteroids are administered orally.
Not use in bronchospasm or status asthmaticus.
WSU CONH STUDY GUIDE FOR NLN PHARMACOLOGY EXAM (REVISED 6/3/2013) 21 Drug Use and dosage Side effect Teaching and labs contraindication Benztropine mesylate (Cogentin)
Anticholinergic (cholinergic receptor antagonist)
Anti-Parkinson
Treat Parkinson symptoms: Suppresses tremors and rigidity, not tardive dyskinesia Decreases hypersalivation and irregular movement related to Parkinson disease. Reduces extra- pyramidal side effects
Side effects: dry mouth, urinary retention/hesitancy, HA, dizziness.
Adverse effects/toxicity: paralytic ileus Monitor dose carefully; even slight overdose can lead to toxicity.
Nursing considerations: Monitor I&Os,
Education: Avoid driving, or other hazardous activities; drowsiness may occur. Avoid cough OTC medication unless prescribed. Avoid use with: narrow-angle glaucoma, myasthenia gravis, GI obstruction Buspirone (Buspar)
anxiolytic Anxiety
Desired response 7- 10 days; Make take 3-4 weeks for full effect Side effects: Dizziness headache drowsiness When switching to Buspar, taper off benzodiazepines Less likely to have cognitive impairment than other CNS meds Does not cause withdrawal s/s and thus does not need to be tapered off when stopping Avoid use with: MAO Inhibitors Lactation
Caution with: moderate to severe renal impairment WSU CONH STUDY GUIDE FOR NLN PHARMACOLOGY EXAM (REVISED 6/3/2013) 22 Drug Use and dosage Side effect Teaching and labs contraindication Chlordiazepoxide hydrochloride (Librium)
Anxiolytic Sedative-hypnotic benzodiazepine
IM & tablet form
Peak: 1-4 hours PO, 15-30 min IM. Half-life 5-30hr
To relieve tension and/or anxiety To manage alcohol withdrawal
do not to stop taking drug abruptly will have withdrawal symptoms (usually in 5-7 days)
Suicidal tendencies may be present and protective measures may be necessary.
Monitor closely for paradoxical reactions excitement, stimulation, acute rage usually early in tx withhold drug and notify dr. Give with milk or food to prevent GI upset. Check BP and pulse early in tx. If BP falls delay medication and notify dr. Labs: Monitor CBC, renal and hepatic enzyme levels watch for dependency Education: Avoid alcohol no OTC meds unless prescribed Avoid driving and other hazardous activities until effects known.
Avoid use with: Narrow angle glaucoma, under 12 year old lactation
Use cautiously with: impending depression, impaired hepatic or renal function, COPD
WSU CONH STUDY GUIDE FOR NLN PHARMACOLOGY EXAM (REVISED 6/3/2013) 23 Drug Use and dosage Side effect Teaching and labs contraindication Chloramphenicol (Chloromycetin)
Oral, injection, ophthalmic drops and ointment
Anti-bacterial
severe infection for susceptible organisms when other anti-infective are ineffective. Sty, conjunctivitis, uveitis Side effects: dermatitis, itching, stinging, swelling Adverse effects/toxicity (oral and injection) edema super infection, aplastic anemia. Stevens-Johnson syndrome
obtain culture specimen from eye before initiation of treatment remove exudates. Monitor for pain, drainage, redness, swelling. Monitor for bleeding or bruising Avoid use with: hypersensitivity Chlorothiazide (Diuril)
Thiazide diuretic, non-Potassium sparing Anti-hypertensive Increases urinary excretion sodium and water by inhibiting sodium reabsorption. Use for edema and HTN, HF, cirrhosis, corticosteroid and estrogen therapy, diabetes insipidus, Side effects: Dizziness, vertigo, frequent urination, electrolyte imbalance, impaired glucose tolerance, hyperuricemia, photosensitivity Adverse effects/toxicity: Renal failure, aplastic anemia, and anaphylaxis
Take early in the morning to avoid nocturia. Give with food, allow for 3-4 weeks for maximum effect, Will not be effective if creatinine clearance Is less than 30ml/min
Avoid use: Client with anuria. Use cautiously with impaired renal or hepatic function. If pregnant. Will increase serum lithium level WSU CONH STUDY GUIDE FOR NLN PHARMACOLOGY EXAM (REVISED 6/3/2013) 24 Drug Use and dosage Side effect Teaching and labs contraindication Chlorpromazine hydrochloride (Thorazine)
Give bromocripitine (Parlodel) and dantrolene (Dantrium) for NMS.
Block dopamine receptor in CNS to Use: treat psychotic disorder (schizophrenia, bipolar, and other mental illnesses); prevent acute exacerbation and maintain highest possible level of function Use to control manic phase (bipolar) intractable hiccups nausea/vomiting
Low potency anti- psychotic which can reduce the risk of EPSE (extra- pyramidal side effects) Side effects: Sedation, orthostatic hypotension, anticholinergic effect (dry mouth, blurred vision, urinary retention, photophobia, constipation, tachycardia) liver damage, tremor are two major side effects. photosensitivity Adverse effects/toxicity: Neuroleptic malignant syndrome (NMS), catatonia, rigidity, stupor, unstable blood pressure profuse sweating, dyspnea. Can be toxic effect and MAY last for 5-10 days after discontinuation of the med.
get baseline ECG, thorough baseline evaluation lab tests before treatment. Give bromocripitine (Parlodel) and dantrolene (Dantrium) for NMS. Withdrawal of drug is necessary Take measures to protect eyes exposed to sunlight
Monitor diabetics closely for glucose intolerance WSU CONH STUDY GUIDE FOR NLN PHARMACOLOGY EXAM (REVISED 6/3/2013) 25 Drug Use and dosage Side effect Teaching and labs contraindication Cimetidine (Tagamet)
GI meds, H2 receptor antagonist Works against histamine receptors, decreases gastric secretion. Use short term for duodenal ulcer, benign gastric ulcer, acute upper GI bleed Side effects: Cardiac dysrhythmia, diarrhea, dry mouth, constipation Adverse effects/toxicity: Rare but may include agranulocytosis neutropenia , thrombocytopenia aplastic anemia, anaphylaxis May be given with meals and at bedtime Avoid smoking which cause gastric stimulation Avoid antacid use within one hour of dose Avoid use: hypersensitivity Use caution: impaired renal or hepatic function Cisplatin (Platinol)
Half-life 20-30 minutes
Antineoplastic medication Alkylating agent
** Major allergic reaction can occur within first 15 mins. of administration. Anaphylaxis may occur within minutes of drug initiation. Treat ovarian and testicular cancer by interfering with DNA replication
Side effects: anorexia, uncontrolled N/V, fluid retention, weight gain Adverse effects/toxicity: Major toxicities occur in the blood, GI, and reproductive system. Watch urine output and specific gravity- nephrotoxicity may occur within 2 wks. ototoxicity (tinnitus or difficulty hearing in the high frequency range) maintain fluid at least 3000 ml in 24 hr. ; report reduced urine output Avoid food high in thiamine (beer, wine cheese, brewers yeast, chicken liver & banana) - may lead to hypertension & intracranial hemorrhage
Avoid use: Hx of sensitivity to platinum-containing compounds, impaired renal function and hearing, Hx of gout, renal stones. Incompatible with dextrose and Reglan, Vanco Lasix may increase otoxicity other nephrotoxic drugs may increase nephrotoxicity and renal failure. WSU CONH STUDY GUIDE FOR NLN PHARMACOLOGY EXAM (REVISED 6/3/2013) 26 Drug Use and dosage Side effect Teaching and labs contraindication Codeine sulfate
Rapid onset if IM or IV. Peak 1-2 hrs., Duration up to 7 hours.
To treat mild to severe pain most oral preparations combined with ASA or acetaminophen
hyperactive cough
Side effects: Constipation, urinary retention, dizziness, lightheadedness. Adverse effects/toxicity: Respiratory depression, respiratory arrest, circulatory depression, ICP. Long term use may cause withdrawal symptoms when stopped Assess for: respiration and usually hold <12 breaths per minute, CNS changes (LOC), allergic reaction TEACH: no alcohol no OTC pain meds unless ordered Avoid driving until drug response is known. Do not use: Hypersensitivity Increased ICP, head injury Acute alcoholism labor
Cyanocobalamin (Vitamin B12)
Half- life: 6 days
Vitamin B12 helps in the formation of red blood cells essential for the proper production of blood platelets and red and white blood cells and the nervous system Malabsorption syndrome Pernicious anemia
water-soluble vitamin that is stored in the liver. Adverse effects/toxicity: Anaphylactic shock, sudden death, severe optic nerve atrophy (may develop after years of use or with Lebers disease)
Teach: Injection is once per month for life with pernicious anemia . Oral preps may be mixed with fruit juice but give immediately since ascorbic acid (Vit. C) affects stability of B12. Dietary B12: best are organ meats, egg yolk, clams, oysters, crabs, sardines, salmon Do not use: Hypersensitivity Lactation
WSU CONH STUDY GUIDE FOR NLN PHARMACOLOGY EXAM (REVISED 6/3/2013) 27 Drug Use and dosage Side effect Teaching and labs contraindication Cyclosporine (Sandimmune)
Immuno- suppressant medication
Metabolized in the liver. Peak 4-5hr, Duration 20-54 hrs. Half-life 19-27 hrs. Inhibit T helper and T suppressor cells. Prevent rejection of kidney, liver and heart transplants. Treat chronic rejection in people who have received immuno- suppressive agent, rheumatoid arthritis, recalcitrant plaque psoriasis Side effects: Hypertension, increased risk of infection Tremor is an expected side effect
Adverse effects/toxicity: Renal toxicity, hepatotoxicity Monitor labs: AST, ALT, BUN, creat, platelet count, K, TEACH: Take with food to reduce GI upset mix with milk, chocolate milk or orange juice but not with Grapefruit juice Mix in glass, not plastic Avoid use of live vaccine Prevention of infection and report signs of infections
Immunosuppressed precautions
Do not use: Pregnant/lactating mom, Use cautiously in renal and hepatic impairment
oral contraceptive increase levels WSU CONH STUDY GUIDE FOR NLN PHARMACOLOGY EXAM (REVISED 6/3/2013) 28 Drug Use and dosage Side effect Teaching and labs contraindication Debrox drops
Ear drops to dewax
used to soften and loosen ear wax, making it easier to remove.
Side effects: temporary decrease in hearing after using the ear drops mild feeling of fullness in the ear mild itching inside the ear. Adverse effects/toxicity: Get emergency medical help if you have any of these signs of an allergic reaction: hives; difficulty breathing; swelling of your face, lips, tongue, or throat
Use: Tilt head with ear facing upward. Pull back on ear to open up the ear canal. Drop the correct number of ear drops into the ear. After using the ear drops, stay lying down or with your head tilted for at least 5 minutes. You may use a small piece of cotton ball to plug the ear and keep the medicine from draining out. A bubbling sound inside may be heard after putting in the drops. This is caused by the foaming action of carbamide peroxide, which helps break up the wax May come with bulb syringe.
Do not use: With a ruptured ear drum. any signs of ear infection or injury Do not use this medication in a child younger than 12 years old without the advice of a doctor. Do not use for longer than 4 days in a row.
WSU CONH STUDY GUIDE FOR NLN PHARMACOLOGY EXAM (REVISED 6/3/2013) 29 Drug Use and dosage Side effect Teaching and labs contraindication Diazepam (Valium)
Benzodiazepine (have zep and zap in them) minor tranquilizers, anticonvulsant, anxiolytic
Absorbed from GI, metabolize in liver
Onset 30 min IM, 60 PO, 15 IV. Works quickly. Peak 1-2hr PO, Duration 15 min to 1hr IV; up to 3 hrs. PO. Half-life 20-50 min
Relieve pain and discomfort from musculoskeletal disorders, manage anxiety, Manage acute alcohol withdrawal
Maximum effect will be seen in 1-2 weeks. Can take 2-4 wks. It has addictive effect.
cardiovascular collapse, laryngospasm, dizzy, weakness, nausea Adverse effects/toxicity: Erythema multiforme, angioedema, anaphylaxis, dysrhythmia seizure Watch for CNS effect. Monitor CBC WBC with diff. notify dr. if drop in BP of 20 mm Hg Assess for allergic reaction including idiosyncratic reaction, anaphylaxis, rash fever resp distress Teach Do not stop abruptly withdrawal symptoms will occur (insomnia, nausea HA, spasticity, tachycardia). No alcohol (will increase CNS depression)
Suicide prevention precautions
Do not use: compromised pulmonary function, hepatic disease, impaired myocardial function, acute alcohol intoxication infant < 6 months narrow angle glaucoma, open angle glaucoma WSU CONH STUDY GUIDE FOR NLN PHARMACOLOGY EXAM (REVISED 6/3/2013) 30 Drug Use and dosage Side effect Teaching and labs contraindication Digoxin (Lanoxin)
Cardiac glycoside, antiarrhythmic drug.
Therapeutic range: 0.5-2.0ng/ml Toxic level > 2
Antidote: digibind (digoxin immune fab)
Positive inotropic effect In heart failure it Increase contraction of the heart muscle. In atrial fib, it slows the heart rate
Side effects: Nausea, HA, loss of usual appetite. Adverse effects/toxicity: Toxicity may go unrecognized since it presents with same symptoms as flu (N/V, anorexia, diarrhea, vomiting visual disturbance). Blurred green or yellow vision or halo effect** In HF, early sign of toxicity includes dysrhythmias. Children rarely show signs of N/V, diarrhea, visual problem, anorexia (could become dig toxic without showing usual s/s)
may give without regard for food IVP over 5 min, do not give IM, it will cause tissue irritation. Monitor apical pulse, if <60/min., usually hold meds and notify doctor. Monitor labs (K, calcium, magnesium, creatinine clearance), Monitor Dig level every 6 months. weigh daily and report weight greater than 2 lbs. per day
Avoid use with: hypersensitivity to dig Caution with kidney failure
Interaction: IV calcium with dig may increase risk of cardiac dysrhythmias, erythromycin will increase dig level, quinidine, verapamil and amiodarone will increase dig levels and dig dose should be decreased by 50% Cyclophosphamide combined with dig cause dig toxicity WSU CONH STUDY GUIDE FOR NLN PHARMACOLOGY EXAM (REVISED 6/3/2013) 31 Drug Use and dosage Side effect Teaching and labs contraindication Disulfiram (Antabuse)
The only alcohol antagonist in use.
Enzyme inhibitor Anti-alcohol agent.
Half-life 24-36 hour Onset up to 12 hrs. Duration up to 2 wks. Absorbed from the GI excreted in feces or in the breath as carbon disulfide Adjunct treatment of patient with chronic alcoholism who sincerely wants to maintain sobriety. At least 12 hours should elapse from the time of last alcohol intake and the initial dose Use only in people with high physical health. Use for 1-2 wks.
INTENDED Reaction with alcohol ingestion: flushing face, chest, arms pulsating HA Nausea violent vomiting thirst sweating marked uneasiness
Side effects: Rare in the absence of alcohol
Adverse effects/toxicity: ** Acetaldehyde syndrome hypotension to shock level arrhythmias, acute congestive failure, marked respiratory depression, unconsciousness, convulsions sudden death
The effects of disulfiram may persist for 2 weeks after last dose is taken; alcohol must not be consumed until this interval is over. Give in the morning when the resolve not to drink is the strongest. Give at bedtime to minimize the effect of drug avoid alcohol of all forms include those found in sauces, cough mixture and after shave lotions, colognes and liniments Do not use: In people who do not want to stop drinking. Severe cardiac disease, psychoses, pregnancy, multiple drug dependence.
WSU CONH STUDY GUIDE FOR NLN PHARMACOLOGY EXAM (REVISED 6/3/2013) 32 Drug Use and dosage Side effect Teaching and labs contraindication Epinephrine (Adrenalin)
alpha and beta adrenergic agonist vasopressor bronchodilator
If given IM, SQ - result seen in 5 min & lasts up to 4 hrs.,
Also use in ophthalmic decongestant, manage open angle glaucoma Side effects: nervousness, tremors, increased HR, BP, insomnia, anorexia cardiac stimulation vascular HA.
D/C if hypersensitivity develops (develops of lids, itching, discharge, crusting eyelid). Notify doctor
Teach Report nervousness and sleeplessness - dose should be reduced. Administer eye drops at bedtime. May experience headache and stinging but subside with continued use. Report if continues.
Monitor VS especially HR and BP because of cardio effect.
If use with MOA inhibitors may lead to hypertensive crisis. Narrow angle glaucoma, hemorrhagic traumatic or cardiogenic shock, arrhythmias, organic heart or brain disease.
CAUTION in: older adults, HTN TB, long standing bronchial asthma and emphysema children < 6
No breastfeeding WSU CONH STUDY GUIDE FOR NLN PHARMACOLOGY EXAM (REVISED 6/3/2013) 33 Drug Use and dosage Side effect Teaching and labs contraindication Famotidine (Pepcid)
Histamine H2 antagonist. Onset 1 hr. Peak 1-3hr Duration 10-12 hrs. Half-life 2.5-4hr Decreases output of gastric acid Short term treatment in duodenal ulcer or benign gastric ulcer. Metabolized in liver, excreted in urine Side effects: diarrhea, constipation, dry mouth Adverse effects/toxicity: thrombocytopenia May be taken with food. pain relief may not be experienced for several days Use cautiously with impaired renal or hepatic function. Do not breastfeed
avoid antacid use within 1 hour of dose Fluoxetine hydrochloride (Prozac)
Such as rash. Wait 4-6 weeks before switch to MAO Inhibitor
Common side effects: Orthostatic hypotension sedation Anticholinergic Hypomania Sexual dysfunction Adverse effects/toxicity: Cardiac toxicity Selective Serotonin syndrome (early s/s: diaphoresis, agitation, low grade temp.) Then increase in BP, muscle rigidity, temp, resp, pulse. Mental status changes, tremors, hyperthermia, sweating hypersalivation. Notify dr ASAP. DO NOT stop abruptly. Give meds once a day at about noon because it causes insomnia. If prescribed 2 times daily give dose in the morning early and 12 noon to prevent insomnia Teach side effects of drugs Therapeutic response takes some weeks to be established.
MI, cerebrovascular disease. If suicide risk, should not have access to a large quantity. Do not take while pregnant
** The combination of TCA and MAOI can lead to hypertensive crisis from excessive adrenergic stimulation of the heart and blood vessels.
WSU CONH STUDY GUIDE FOR NLN PHARMACOLOGY EXAM (REVISED 6/3/2013) 34 Drug Use and dosage Side effect Teaching and labs contraindication Fluphenazine (Prolixin)
effect can be seen 1-2 days but full effect several weeks
Potent medication for treatment of antipsychotic symptoms, including schizophrenia. Treatment is not curative. Adjust dose to symptoms.
Use injectable form for long term maintenance - the rate of relapse is usually reduced and is more favorable Produces EPS which are reversible. ** Treat EPS with Cogentin, Artane, Benadryl, Symmetrel Side effects: ABCDE Anticholingergic (dry mouth), Blurred vision, Constipation, Drowsiness, EPS Photosensitivity may increase risk of agranulocytosis gynecomastia, amenorrhea weight gain Adverse effects/toxicity: Neuroleptic malignant syndrome (NMS) a fatal side effect. Presents with catatonia, rigidity, stupor, unstable blood pressure, hyperthermia profuse sweating, dyspnea, incontinence. Stop drug. Tx with Dantrium and Parlodel. Condition lasts for 5-10 days after stopping med. Monitor LFTs
TEACH Avoid alcohol use and other CNS depressants Do not alter dose or stop abruptly Avoid sun exposure
With oral concentrate, avoid spills. Rinse skin with warm water immediately if there is contact
Dilute liquid drug with fruit juice water, carbonated beverage, milk, soup avoid mixing with caffeine, tea, apple juice.
Avoid with: Caution with narrow angle glaucoma, hepatic or renal dysfunction and seizure disorder. Do not breastfeed Dose should be reduced in the elderly.
WSU CONH STUDY GUIDE FOR NLN PHARMACOLOGY EXAM (REVISED 6/3/2013) 35 Drug Use and dosage Side effect Teaching and labs contraindication Furosemide (Lasix)
Loop diuretics, Anti-hypertensive
Peak 60-70 min PO, 20- 60 min IV. Onset 30-60 min PO, 5 min IV, Duration 2 hrs., Half-life 30 min Rapid acting loop diuretic Inhibits reabsorption of sodium and water (in Loop of Henle) Lowers BP by decreasing edema and intravascular fluid
IV form: Administer slowly; hearing loss can occur if injected rapidly (ototoxicity). Give over 1-2 minutes to prevent hypotension.
TEACH change position slowly to avoid dizziness and orthostatic hypotension report ringing in the ear immediately Take with food or milk Give early in day to avoid nocturia Replace potassium (dietary or meds)
Monitor labs, especially electrolytes. Also hgb, hct, platelet as these increase d/t hemoconcentration
Monitor body weight and I&O. Avoid with: anuria, electrolyte depletion, increasing oliguria, anuria hepatic coma, pregnancy, lactation
Interaction with digitalis can increase arrhythmias.
Interaction with aminoglycosides increases risk of ototoxicity. WSU CONH STUDY GUIDE FOR NLN PHARMACOLOGY EXAM (REVISED 6/3/2013) 36 Drug Use and dosage Side effect Teaching and labs contraindication Gentamicin (Garamycin) Aminoglycosides. Antibiotic
Peak level: Drawn 15-30 min after the infusion is completed. Peak concentration determines that toxic level does not occur. If peak is too high, may reduce dose. Trough level: Drawn immediately (within 30 minutes) before next IV dose Assures that therapeutic level of drug is maintained. Trough level is 1-2 g/ml between doses. Dose will be adjusted if level is not sustained Peak 30-90 min Half-life 2-4 hr. Broad-spectrum antibiotic Parenteral use limited to severe infections, unresponsive to other antibiotics.
Ophthalmic: treat superficial infection of the eye. Have pt. keep eyes closed for 1-2 min after instillation. Vision will be blurred initially
Side effects: HA, parenthesia, skin rash fever
Adverse effects/toxicity: Nephrotoxicity Ototoxicity. This may cause irreversible auditory impairment and vestibular damage Signs of ototoxicity include HA, NV unsteady gait, tinnitus, vertigo, high frequency, hearing loss and dizziness Hypersensitivity reactions Superinfection: a secondary infection caused by eradication of normal flora: Candidiasis, skin and mucous membrane
Maintain hydration to protect kidney damage. Fluid intake should be 2,500-3000 ml/day give high protein foods LABS WBC to monitor the effectiveness of therapy Watch kidney function tests (BUN, Creat) closely due to toxicity risk
Report sore throat, watery stools greater than 4-6 per day, severe nausea or vomiting, indicating possible super infection Avoid with: Pre-existing renal disease Use caution with pre-existing hearing loss Pregnancy, lactation Increased risk with nephrotoxic drugs, prolonged treatment with aminoglycosides, impaired renal function and other ototoxic drug such as Lasix, Vanco.
WSU CONH STUDY GUIDE FOR NLN PHARMACOLOGY EXAM (REVISED 6/3/2013) 37 Drug Use and dosage Side effect Teaching and labs contraindication Glipizide (Glucotrol)
oral antidiabetic Sulfonylurea
duration: 12-24 hours Onset: 15-30 min Peak: 1-2hr
Metabolized by the liver Stimulates pancreatic beta cells to secrete insulin. Type 2 diabetes mellitus
Give dose 1-3 time daily
may use alone or in combination with insulin Side effects: GI distress dizziness drowsiness headache
Adverse effects/toxicity: Severe skin rash, pruritus Hypoglycemia Monitor labs including glucose, Hgb A1C
TEACH Take with first daily meal. Take any missed dose as soon as remembered. Report s/s of hypoglycemia if they occur Avoid alcohol Avoid with: Pregnancy, lactation Allergy to sulfa or urea Diabetic ketoacidosis Caution with: impaired renal and hepatic function Adrenal or pituitary insufficiency.
Emergency treatment of severe hypoglycemia in unconscious client or those unable to swallow Comes in powder form. Reconstitute with provided diluent. Give IV, IM or SQ immediately Give IV through D5W only, not NS
Side effects: Nausea/ vomiting
Adverse effects/toxicity: Hypersensitivity reaction, hyperglycemia Hypokalemia Should awaken within 5-20 min after giving. Give 50% glucose if no response to glucagon Teach test blood sugar, teach family how to administer SQ or IM Incompatible with sodium chloride solution. WSU CONH STUDY GUIDE FOR NLN PHARMACOLOGY EXAM (REVISED 6/3/2013) 38 Drug Use and dosage Side effect Teaching and labs contraindication Glyburide (Micronase, DiaBeta)
Oral antidiabetic, more potent drug Sulfonylurea
Onset 15-60 min Peak 1-2 hrs. Duration up to 24 hrs. Half-life 10 hours
Metabolized in the liver, excreted in urine and feces. Lowers blood sugar concentration in diabetics and nondiabetics by sensitizing pancreatic beta cells to release insulin in the presence of serum glucose. Type 2 diabetes Use as adjunct to diet and exercise to lower blood sugar Side effects: Hypoglycemia, epigastric fullness heartburn pruritus
Adverse effects/toxicity: hypoglycemia
Give once in the morning with breakfast or with first main meal Monitor labs including glucose, HgbA1c Teach Report reaction Loss of control of blood glucose level may be due to fever, surgery, trauma, stress, infection. Avoid use with: diabetic ketoacidosis Type I diabetes
Caution with: renal or hepatic insufficiency older adult malnourished pt. adrenal or pituitary insufficiency Haloperidol (Haldol)
High potency drug Antipsychotic Butyrophenone Antiemetic
Onset: 30-45 min IM Effects can be seen in 1- 2 days. Substantial improvement 2-4 wks. Full effect several months.
Psychotic disorders Long acting drug for maintenance to control symptoms Tourettes syndrome Side effects: ABCDE: Anticholinergic (dry mouth) Blurred vision Constipation Drowsiness Extrapyramidal syndrome (such as Parkinsons s/s) Photosensitivity Adverse effects/toxicity: Elderly patient may develop Neuroleptic Malignant Syndrome (NLMS) EPSE: usually first few days of tx, dose related, controlled by dose or anti- Parkinsons drugs Oral: Give with milk or food. Taper dose slowly when stopping. Injection: deep IM risk for orthostatic hypotension no alcohol or driving until response known Avoid with: Parkinsons disease seizure disorder severe mental depression
Use caution: older adults, lithium therapy HTN Lactation WSU CONH STUDY GUIDE FOR NLN PHARMACOLOGY EXAM (REVISED 6/3/2013) 39 Drug Use and dosage Side effect Teaching and labs contraindication Heparin
Anticoagulant
Antidote = Protamine sulfate (see separate listing)
As anticoagulant given IV or SQ Use as continuous IV infusion for DVT, Pulmonary embolus, angina, acute MI SQ for prevention
Hep-lock (flush) is to maintain patency of IV catheters; not for anticoagulant therapy Side effects: Bleeding Heparin-induced Thrombocytopenia (HIT) may appear up to several weeks later. Does not dissolve clots prevents enlargement and development of new clots. Use bleeding precautions Monitor labs: aPTT Normal = 25-40 Coagulated = 1.5-2 times normal = 60-80
Adjust IV dose based on labs. Avoid use with: Hemorrhage, active bleeding
Effects noted 3-4 days; max effect takes 3-4 weeks
Most widely prescribed diuretic for HTN Act on distal tubules of nephron and increases urinary excretion of sodium, chloride, potassium, water, bicarbonate Decreases edema and lowers blood pressure Side effects: Glucose intolerance, hyperglycemia Hypokalemia (low K + )
Give with food or mild to reduce GI upset. Give dose(s) early in the day to avoid nocturia Limit Sodium intake Eat foods high in K + . replacement med usually not needed photosensitivity reaction occur 10-14 days after initial sun exposure Avoid with: Anuria Hypersensitivity to thiazide Use caution: Bronchial asthma hepatic cirrhosis renal dysfunction history of gout diabetes SLE Lactation WSU CONH STUDY GUIDE FOR NLN PHARMACOLOGY EXAM (REVISED 6/3/2013) 40 Drug Use and dosage Side effect Teaching and labs contraindication Hydroxyzine HCl (Atarax, Vistaril)
Anti-emetics Anti-histamine (H 1
receptor antagonist) antipruritic
Onset 15-30 min PO Peak 4-6 hrs. Duration
Absorbed form GI. Metabolized in the liver Treat N/V (use anticipatorily) Relieve anxiety Reduce narcotic requirement before and after surgery. Treat acute or chronic alcoholism with withdrawal symptom or DTs Pruritus
Usually PO for maintenance Side effects: CNS depression, Drowsiness Dizziness dry mouth, anticholinergic effect constipation visual changes photosensitivity
IM: Administer deep IM, Z-track gluteus maximum or vastus lateralis in adults; vastus lateralis in children
monitor mouth daily no alcohol hard candy, ice chips or rinse mouth with warm water frequently to relieve dry mouth Avoid with: CNS depression and coma. Other CNS meds Use caution with: glaucoma seizure intestinal obstruction prostatic hyperplasia asthma cardiac, pulmonary or hepatic disease
For high dose therapy: therapeutic effect may take up to one month
Treat mild to moderate pain absorbed in GI; metabolized in liver Side effects: CNS, renal system, eyes Nephrotoxicity dysuria, hematuria, oliguria, azotemia, Blurred vision. Ototoxicity Children toxicity: Rash, Stevens- Johnson syndrome Increases toxicity of anticoagulant, lithium
Avoid alcohol, ASA, other NSAIDs
Avoid with: GI bleed Reaction to other NSAIDs Children under 6 months
WSU CONH STUDY GUIDE FOR NLN PHARMACOLOGY EXAM (REVISED 6/3/2013) 41 Drug Use and dosage Side effect Teaching and labs contraindication INSULINS
- quick acting: - short acting - intermediate acting - long acting
Insulin is also available in a premixed form of Regular and NPH (example: 70/30 = 30% regular, 70% NPH). Diabetes mellitus, type 1 or type 2
Could be made of: pork/beef, pork or human insulin type.
Short acting and intermediate acting insulin may be given more than once per day.
Side effects: Hypoglycemia (anxiety, confusion, nervousness, hunger, diaphoresis, cool, clammy skin) Lipodystrophy (abnormal deposits of subcutaneous fat at injection sites), local allergic reaction Adverse effects/toxicity: Somogyi phenomenon: a rebound response with high blood sugar in response to low level at night. Coma Hyperosmolar hyperglycemic state (HHS) Diabetic ketoacidosis (DKA)
obtain med alert bracelets Open vial can be stored at room temp for up to one month. Rotate sites Alcohol will increase blood sugar
Requires long-term monitoring of blood sugar control and potential complications.
Do not use beef/pork insulin if sensitivity WSU CONH STUDY GUIDE FOR NLN PHARMACOLOGY EXAM (REVISED 6/3/2013) 42 Drug Use and dosage Side effect Teaching and labs contraindication Insulin Regular (Humulin R)
**THIS IS THE ONLY TYPE OF INSULIN WHICH CAN BE GIVEN IV. **
Short acting insulin Given IV or SQ type 1 and type 2 diabetes mellitus and ketoacidosis. given before meals according to blood levels hypoglycemia Regular insulin is clear and colorless.
Isophane (NPH) insulin (Humulin N)
Intermediate acting insulin Give 30 min before first meal of the day. If necessary, a second smaller dose may be prescribed 30 min before bedtime.
If given before breakfast, hypoglycemic episode is most likely to occur between mid- afternoon and dinner, when it peaks. Eat snack in midafternoon and carry sugar candy.
NPH Insulin is a cloudy suspension. Roll the bottle to mix; do not shake. NOTE: NPH may be mixed with Regular insulin injection without altering either solution.
Insulin Glargine (Lantus)
** LANTUS CANNOT BE MIXED IN SAME SYRINGE WITH ANY OTHER INSULIN.**
Long acting insulin Type 1 children & adults; Type 2 adults SQ injection
Usually given one per day at bedtime. May be given two times per day. With Type 2 diabetes, may or may not be given concurrently with oral agents.
WSU CONH STUDY GUIDE FOR NLN PHARMACOLOGY EXAM (REVISED 6/3/2013) 43 Drug Use and dosage Side effect Teaching and labs contraindication Iron Mineral replacement Side effects: Nausea/vomiting Staining of teeth Constipation Black stools (normal) Taking on empty stomach preferred with full glass of water or citrus juice Calcium inhibits iron absorption do not take with milk. Vitamin C increases iron absorption Liquid form can stain teeth
Ipecac Syrup
Emetic Antidote
Alternate: Activated Charcoal (see separate listing)
For overdose on certain drug or poison stimulates vomiting within 20-30 min
Adverse effects/toxicity: Cardiotoxicity is most serious if vomiting does not occur and the substance is retained.
Use of this medication is not automatic verify appropriateness with Poison control center
Do not use: With reduced level of consciousness or convulsions poison by Petroleum distillates, strong alkaline, acid or strychnine
WSU CONH STUDY GUIDE FOR NLN PHARMACOLOGY EXAM (REVISED 6/3/2013) 44 Drug Use and dosage Side effect Teaching and labs contraindication Lidocaine HCl (Xylocaine)
Antiarrhythmic Topical Anesthetic
Bolus dose may repeat then start continuous infusion stop when stable. Therapeutic level: 1.5- 6mcg/ml Treat VENTRICULAR arrhythmias, PVCs, V-Tach. Use for rapid control of ventricular dysrhythmias during acute MI or Cardiac cath
Stop infusion with EKG changes such as prolonged PR, widened QRS, heart block. LAB Monitor Lidocaine levels assess, therapeutic level is 1.5 -6mcg/ml Assess electrolyte, check baseline liver and renal blood studies. Report: lightheadedness, dizziness, confusion, numbness or tingling of lips, tongue or fingers visual changes or ringing in ears
Correct hypokalemia before giving Lidocaine
Avoid with: Sinus bradycardia Severe degrees of SA, AV and intraventricular heart block.
Use caution: hepatic or renal disease CHF Hypovolemia shock hyperthermia elderly
BETA BLOCKERS increase the effect of lidocaine WSU CONH STUDY GUIDE FOR NLN PHARMACOLOGY EXAM (REVISED 6/3/2013) 45 Drug Use and dosage Side effect Teaching and labs contraindication Lithium carbonate (Eskalith)
Mood stabilizer Antipsychotic
Therapeutic level 0.8-1.5meq/L. Toxic level >2. Lithium has short half-life (about 1 day) and high toxicity.
Drug of choice to control manic episodes in bipolar disorder Anti manic effects are usually seen in 5-7 days after initial doses, but full effect does not occur for 2-3 wks. Lithium is a salt; exact action uncertain
This med does not cause sedation. Mild Side effects: fine tremor, nausea, thirst, polyuria, Adverse effects/toxicity: Vomiting, diarrhea, slurred speech, lack of coordination, drowsiness, muscle weakness, or twitching) withhold dose and notify provider but DO NOT stop abruptly. Give with meals Hydration is essential dehydration will increase levels Watch for weight gain (fluid retention) Avoid NSAIDs and diuretics. Essential to monitor mood and behaviors Labs: Lithium level every 3 months initially, then every 6 months. Do not use with: Dehydration, severe debilitating, severe cardiovascular.
Use caution: elderly, pt. with cardiac, renal, thyroid or diabetes pregnancy
Lorazepam (Ativan)
Anxiolytic Sedative-hypnotic Benzodiazepines.
Onset 1-5 min IV, 15-30 IM, Peak 60-90 min IM, 2 hrs. PO Duration 12-24 hrs. anxiety disorder short term for relief of symptoms of anxiety Pre-anesthetic medication to produce sedation and reduce anxiety. Status epilepticus Side effects: Drowsiness sedation Mild medication with limited toxic potential respiratory depression is rate
Paradoxical reactions (nightmares, mania, etc.) may occur in children, psych patients and the elderly. Avoid alcohol Taper dose when stopping to avoid withdrawal symptoms Watch for suicidal risk Do not use with: Acute narrow-angle glaucoma, Primary depression acute alcohol intoxication. Pregnancy and Lactation Use caution: renal or hepatic impairment myasthenia gravis suicidal tendencies
WSU CONH STUDY GUIDE FOR NLN PHARMACOLOGY EXAM (REVISED 6/3/2013) 46 Drug Use and dosage Side effect Teaching and labs contraindication Magnesium Sulfate
iron(Epsom salt oral form)
Onset 1-2 hrs. PO; 1 hr. IM. Duration 30 min IV, 3-4 hr. PO Eliminated by kidneys
Normal Magnesium level: 1.8-3 mEq/L Oral: laxative (by osmotic retention of fluid which distend the colon, increase content of feces and cause bowel stimulation) Parenteral: CNS depressant; used in seizures of toxemia; for hypomagnesemia
4 gm. loading dose is give over 20-20 min via pump.
Side effects: Flushed warm feeling fluid and electrolyte imbalance hyponatremia N/V
Adverse effects/toxicity: Early indication of magnesium toxicity Respiratory depression Cathartic effect profound thirst feeling of warmth sedation confusion depressed deep tendon reflexes muscle weakness can lead to cardiac arrest
Monitor urinary output and hydrate adequately with parenteral administration.
Avoid with: MI, heart block, cardiac arrest except for certain arrhythmias. Use caution: impaired kidney function other cardiac glycosides Lactating moms and children WSU CONH STUDY GUIDE FOR NLN PHARMACOLOGY EXAM (REVISED 6/3/2013) 47 Drug Use and dosage Side effect Teaching and labs contraindication Mannitol (Osmitrol)
Electrolyte and water balance agent osmotic diuretic
Onset 1-3 hr. diuresis; 30 to 60 min IOP, 15 min. for ICP Duration 4-6 hr. IOP, 3-8 hr. ICP
Serum osmolality is 275- 300 mmol/kg.
Give IV. Usually give test dose which should result in Output of 30 to 50 ml/hr. and is produced 2-3 hrs. after administration. Use in oliguria and acute renal failure. Help to prevent renal failure and reduce increased intracranial or intraocular pressure It acts by increasing the osmolality of plasma, glomerular filtrate, and tubular fluid. This decreases the reabsorption of fluid and electrolytes, which increases excretion of water, chloride and sodium and slightly increase the excretion of Potassium. In intraocular (IOP) and CSF (ICP), it pulls the fluid and sends it to the plasma and extravascular systems Side effects: HA, confusion, syncope fluid and electrolyte imbalance, esp. hyponatremia pulmonary congestion, rhinitis Water intoxication
Warning: There may be a rebound increase in ICP about 12 hours after administration of med. Pt may complain of HA, or confusion. Use filter needle and/or filter in infusion tubing because crystals may form in the solution. Mannitol is held if serum osmolality exceeds 310 -320. Daily weights Teach Non-narcotics such as Tylenol if there is headache Therapy is based on urine flow rate. Reassure pt. that excessive thirst, blurred vision, rhinitis should subside when Mannitol is discontinued
Do not use: severely impaired renal function marked dehydration breast feeding hepatic failure, active ICP anuria Intracranial bleed shock
Question the administration of mannitol if the patient has cor pulmonae (right sided heart failure) because Mannitol pulls fluid and it may lead to circulatory overload which the heart could not handle. This client would need loop diuretic to prevent serious complications
WSU CONH STUDY GUIDE FOR NLN PHARMACOLOGY EXAM (REVISED 6/3/2013) 48 Drug Use and dosage Side effect Teaching and labs contraindication Meperidine HCl (Demerol)
Narcotic analgesic (opioid agonist)
Give Narcan for toxicity - It is use to reverse respiratory depression induced by overdose
Onset: 15 mins. PO, 10 mins. IM, 5 mins IV duration 2-4 hours Given for moderate to severe pain. Potent, long acting
Side effects: N/V, Anorexia Sedation, dizziness elevated BP rash, urticaria tremors hyperventilation Adverse effects/toxicity: Resp depression, respiratory arrest, circulatory depression, increased intracranial pressure Assess: LOC rash, urticaria respiratory rate. If respirations < 12 per minute withhold meds. Avoid use with: acute bronchial asthma, upper airway obstruction increased intracranial pressure convulsive disorder pancreatitis, acute ulcerative colitis severe liver or kidney insufficiency Caution with: children and elderly Metoprolol tartrate (Lopressor, Toprol)
Antianginal = same action as with propanolol Decreases heart rate and cardiac output Lowers BP
Mild to severe HTN angina pectoris **Post - acute MI**
Max effect may take 1 week
Side effects: Usually well tolerated Nausea, vomiting Weight gain worsening CHF insomnia Adverse effects/toxicity: profound bradycardia heart block acute CHF, bronchospasm laryngospasm
Give with or w/o food, but consistent Do not stop abruptly; may cause rebound effect. Gradually decrease over 1-2 wks. Hold meds if BP < 90 or pulse < 60 Watch for s/s heart failure Can lead to elevated BUN, creat. May mask hypoglycemia Avoid use with: Heart block greater than 1 st degree Sinus brady, cardiogenic shock Use caution: hyperactive airway syndrome ( asthma or bronchospasm)
Increases chance of both Dig and Lithium toxicity
WSU CONH STUDY GUIDE FOR NLN PHARMACOLOGY EXAM (REVISED 6/3/2013) 49 Drug Use and dosage Side effect Teaching and labs contraindication Morphine Sulfate
(MS Contin = sustained release form)
Narcotic analgesic (Opioid agonist)
Give Narcan for toxicity.
Onset, Peak, Duration depend on route of medication. Onset: Immediate IV, rapid if given IM or oral, except MS Contin
Produces effect by binding to opioid receptors throughout the CNS. Schedule II drug, major drug abuse.
For severe, chronic or acute pain. Most commonly use in post- operative setting. mild bronchodilator to improve breathing
MS Contin is sustained release; it will not control break-through pain because it is time release. Side effects: Nausea vomiting anorexia, GI, pruritus, light headedness constipation Adverse effects/toxicity: Classic triad of symptoms: respiratory depression, coma, pinpoint pupils. Withdrawal begins 6-8 hrs. After the last dose, reach peak intensity within 48-72 hrs. S/S include craving, chills, sweating piloerection (goose flesh), abdominal pain and cramps, diarrhea, runny nose, irritability. Morphine induced CNS stimulation paradoxical reaction common in women and older adults.
Avoid alcohol use
Hold medication if respirations < 12/min
Hydrate adequately to prevent constipation
Avoid use with: Hypersensitivity to opiates) acute bronchial asthma or upper airway obstruction, ICP convulsive disorders pancreatitis, acute ulcerative colitis severe liver or kidney disease
Do not give morphine to children
WSU CONH STUDY GUIDE FOR NLN PHARMACOLOGY EXAM (REVISED 6/3/2013) 50 Drug Use and dosage Side effect Teaching and labs contraindication Naloxone HCl (Narcan)
Opioid antagonist.
Onset 1-2 min IV; 2-5 mins. SQ or IM
Duration 1 hr. IV; up to 4 hrs. IM but start to diminish after 20 mins.
Competes with opioids at the opiate receptor sites, blocking the effects of the opioids Reverses effects of opiates, including respiratory depression, sedation and hypotension.
May need given every few hours until the opioids has dropped to a nontoxic level Side effects: Increased BP, HR, hyperpnea tremors, hyperventilation, drowsiness, nervousness N/V
Adverse effects/toxicity: Hypotension, V-tach and V-fib convulsion, hepatitis pulmonary edema, Watch vital signs and respiratory function closely with administration of medication
Titrate dose slowly - if too much is given the client will swing from a state of intoxication to one of withdrawal
Avoid use with: Known allergy Respiratory depression d/t non- opioids Substance abuse (may lead to withdrawal symptoms) Nedocromil (Tilade)
Inhaled non- steroidal medication anti-inflammatory and antiasthmatic.
(also available as optic form for ocular allergic conjunctivitis) asthma prophylaxis NOT for acute asthma attacks up to a week for full effectiveness Must be taken regularly to be effective Adverse effect: abnormal bitter taste N/V, HA, dizziness, sore throat. Rinse mouth after taking medication to avoid dry mouth Do not use for acute attack Non-compliance is a concern due to bitter taste Avoid use with: acute bronchospasm or status asthmaticus. Hypersensitivity
Use with caution: hepatic or renal function WSU CONH STUDY GUIDE FOR NLN PHARMACOLOGY EXAM (REVISED 6/3/2013) 51 Drug Use and dosage Side effect Teaching and labs contraindication Neomycin sulfate (Mycifradin)
ORAL aminoglycoside antibiotic
Antibacterial ORAL GI tract Hepatic coma
Main form is topical for eye, ear and skin infection.
NEOMYCIN IS NOT GIVEN IV Side effects: skin rash (esp. topical)
angina mild to moderate HTN (sustained release form)
Dilates coronary arteries and relaxes coronary spasm Increases cardiac output; decreases peripheral vascular resistance. Blocks calcium ion flow into cells of myocardial and arterial smooth muscle (cardiac and peripheral blood vessels) Slows HR; decreases O2 need Side effects: Usually well tolerated Headache fatigue Dizziness Postural hypotension peripheral edema
Adverse effects/toxicity: Gingival hyperplasia
Do not give 1-2 wks. after an acute MI. Do not give with grapefruit juice (could lead to toxicity) Report gradual weight gain and evidence of edema; may indicate onset of CHF. Do not stop suddenly (will have rebound symptoms) Smoking decreases efficacy of med Monitor pulse rate report irregular or slower than normal rate. Hold for BP below 90/60. Avoid use with: Known hypersensitivity Unstable angina Lactation
WSU CONH STUDY GUIDE FOR NLN PHARMACOLOGY EXAM (REVISED 6/3/2013) 52 Drug Use and dosage Side effect Teaching and labs contraindication Oxytocin (Pitocin)
Oxytocic Labor and delivery.
Onset is immediate. After stopping med, contractions should stop in 2-3 minutes Half-life 3-5 min To initiate or improve uterine contractions at term Induce labor Management of incomplete or missed abortion (miscarriage) reduce postpartum bleeding Side effects: subarachnoid bleed fetal trauma seizure, coma Adverse effects/toxicity: Hypertensive crisis.
For fetal anoxia: stop infusion, turn mom on left side, oxygen prn Stop infusion for: Contractions which occur more often than every 2 mins. or last over 90 sec. Careful monitoring of uterine contraction pattern, fetal heart rate and maternal BP. Postpartum; monitor lochia and BP. Do not increase dose after desired contraction pattern is achieved (contraction frequency of 2-3 min lasting 60 sec). Avoid use with: Hypersensitivity Cepahalopelvic disproportion Obstetric emergencies Pancrelipase (Creon, Pancrease)
Pancreatic enzyme replacement therapy
Help to breakdown fat, proteins and carbs for better absorption.
cystic fibrosis chronic pancreatitis, post pancretectomy steatorrhea malabsorption syndrome
Take with or just prior to eating Do not mix brand names; there is a variance in concentration of enzymes Swallow tablet or capsule whole; do not crush or chew. Can mix powder or open capsule with food. Drug interaction: Allergy to med or pork Do not give with magnesium- containing antacid. May be ordered with H2 blockers or with proton pump inhibitors. Iron will decrease effectiveness of med. WSU CONH STUDY GUIDE FOR NLN PHARMACOLOGY EXAM (REVISED 6/3/2013) 53 Drug Use and dosage Side effect Teaching and labs contraindication Phenobartial (Phenobarbital Sodium = Luminal) this is the short-acting form.
For status epilepticus: Administer slow IV
Anticonvulsant Sedative-hypnotic
Long-term management of grand mal, partial seizure and status epilepticus.
Sedative effect to decrease anxiety and tension.
No analgesic effect Side effects: Somnolence, hangover effect Adverse effects/toxicity: CNS depression, Stevens-Johnson Blood dyscrasias Paradoxical reactions may occur in children, older adults and debilitated people
Okay to crush and mix with food or fluids Monitor IV infusion closely. Do not stop abruptly Avoid alcohol and other CNS depressants
Avoid use with: Hypersensitivity Resp or kidney failure Pregnancy and lactation Pilocarpine hydrochloride (Pilocar)
Eye preparation. Miotic (Anti- glaucoma agent). Direct acting cholinergic agent for ophthalmic use.
It is an antidote to Atropine
For acute or chronic Glaucoma decreases intraocular pressure
Will reverse the effects of Atropine (and Atropine will reverse the effects of Pilocarpine). Side effects: Visual blurring, myopia, irritation, brow pain and HA. (with ophthalmic) Normal: Increased pigmentation of iris and eyelids; long eyelashes. Adverse effects/toxicity: Retinal detachment Ataxia Confusion seizure
Apply gentle pressure for 1-2 mins. to nasolacrimal drainage area after administering eye gtts Eye therapy will continue long term Avoid use with: Asthma, COPD HTN Acute eye infections, retinal detachment, contact lens use WSU CONH STUDY GUIDE FOR NLN PHARMACOLOGY EXAM (REVISED 6/3/2013) 54 Drug Use and dosage Side effect Teaching and labs contraindication Prazosin hydrochloride (Minipress)
Mild to moderate HTN mainly diastolic little effect on cardiac output and HR BPH (due to vasodilator effects)
Side effects: Dizziness, drowsiness Fatigue, weakness. Priapism, impotence Orthostatic hypotension Adverse effects/toxicity: First-dose phenomenon: syncope within 30 min to 1 hr. Effect is transient, may diminish by giving at bedtime. monitor for decreased BP, especially with initial administration Monitor urine vol. change position slowly to prevent orthostatic hypotension stop smoking and avoid alcohol intake avoid driving and hazardous tasks until effect of med is known Avoid use with: Prior sensitivity hypotension
Use caution with: impaired hepatic function older adults Prochlorperazine (Compazine)
Antiemetic Antipsychotic Phenothiazine Severe nausea and vomiting Management of psychotic disorders, excessive anxiety and agitation
Take 30-60 min before any activity that causes nausea for best effect.
Start doses low and increase slowly Side effects: drowsiness, dizziness, EPSE Adverse effects/toxicity: Persistent tardive dyskinesia Tremor, twitching Agranulocytosis, thrombocytopenia After 1-2 months: Akathisia (inner restless, inability to sit still) may tx with propranolol. Avoid excessive sunlight may turn skin gray-blue Urine may turn reddish brown Use sugarless hard candy or ice chips to avoid dry mouth. Avoid skin contact with concentrate Do not crush or chew swallow whole Deep IM, not SQ injection Avoid use with: Hypersensitivity Blood dyscrasias Dementia related psychosis in elderly Young children Seizures Lactation
WSU CONH STUDY GUIDE FOR NLN PHARMACOLOGY EXAM (REVISED 6/3/2013) 55 Drug Use and dosage Side effect Teaching and labs contraindication Promethazine (Phenergan)
Antiemetic Antihistamine Anti-vertigo
Long-acting med motion sickness nausea
IM route: Give deep IM; not SQ (can cause necrosis) Avoid intra-arterial injection can cause necrosis. Side effects: Resp depression, drowsiness, confusion agranulocytosis blurred vision dry mouth EPSE Decrease GI distress by giving oral dose with milk or food. May crush and mix with food. Avoid sunlight exposure Avoid alcohol and other CNS depressants Avoid use with: Acute MI, angina, atrial fib Use caution with: Narrow angle glaucoma peptic ulcer duodenal obstruction Protamine sulfate
Antidote for Heparin toxicity. Heparin antagonist
minutes Duration = 2 hours Longer half-life than heparin Antidote for Heparin overdose Given IV; maximum dose of 50 mg in 10 min time period; should be titrated according to the time and length of time the heparin was administered Side effect: Abrupt drop in BP if administered too rapidly. Monitor vital signs and labs closely (aPTT)
See listing for HEPARIN Avoid use with: Hemorrhage not induced by heparin overdose.
Ranitidine hydrochloride (Zantac)
H 2 -receptor antagonist. Higher potency than cimetidine (Tagamet) Reduce gastric secretion. Active duodenal ulcer, maintenance after healing GERD benign gastric ulcer (short-term)
Side effects: headache taste disorder, diarrhea, constipation dry mouth Adverse effects/toxicity: hepatotoxicity thrombocytopenia Give without regard to meals Usually give 1 x day reduce dose in renal patient avoid smoking to avoid antacid within 1 hour of dose Avoid use with: Hypersensitivity Use caution with: Impaired renal of hepatic function. May increase effects of alcohol, aspirin, Coumadin and sulfonylureas WSU CONH STUDY GUIDE FOR NLN PHARMACOLOGY EXAM (REVISED 6/3/2013) 56 Drug Use and dosage Side effect Teaching and labs contraindication Rh 0 (D) immune globulin (RhoGAM)
Biological response modifier Immunoglobulin (IgG)
Peak 2 hour Half-life 25 days Given to Rh- negative moms with RH positive babies.
Provides passive immunity by suppressing active antibody response and formation of anti-RHo when (1) positive fetal RBC enters maternal circulation during the third stage of labor; (2) there is fetal maternal hemorrhage or other trauma during pregnancy; (3) termination of pregnancy or miscarriage; or (4) following a Rh +
transfusion.
Side effects: Injection site irritation slight fever myalgia lethargy Send sample of newborn cord blood to lab for cross match and typing immediately after delivery before administer RHo (D) Give to mom IM via deltoid. (Only a few forms can be given IV). Give immediately after reconstitution Recommended at 28 weeks gestation and then within 72 hours after delivery or 3 hrs. of termination of pregnancy or miscarriage. Keep epinephrine available; systemic allergic reactions sometimes occur. TEACH it will prevent hemolytic disease in a subsequent pregnancy Avoid use with: Known sensitivity to human immunoglobulins. WSU CONH STUDY GUIDE FOR NLN PHARMACOLOGY EXAM (REVISED 6/3/2013) 57 Drug Use and dosage Side effect Teaching and labs contraindication Setraline hydrochloride (Zoloft)
2-3 wks. to be effective Side effects: Cause fewer disorders than other antidepressants fewer side effects on HR and HTN Sexual dysfunction Weight gain Major complication (Selective Serotonin Syndrome): Pt. can die from it. Elevated temp up to 105. Every speed up. BP, HR, Temp. May progress to coma. Give with food in the morning to prevent insomnia Watch for suicide risk Increases effect of Coumadin Avoid grapefruit juice
Avoid use: Within 14 days of using MAO inhibitor Seizure disorder Spironolactone (Aldactone)
Increases sodium excretion; does not decrease potassium treatment of primary aldosteronism Use for edema and HTN associated with heart failure. Side effects: Headache dizziness, weakness orthostatic hypotension Adverse effects/toxicity: Hyperkalemia (nausea, vomiting, diarrhea, cramps, tachycardia then bradycardia) aplastic anemia thrombocytopenia Take with food avoid salt substitute high in K +
Avoid excessive ingestion of foods high in potassium. no potassium supplement needed Monitor VS and urine output Avoid direct sunlight Avoid use with: Serum K + level > 5.5 anuria, acute and chronic renal insufficiency diabetic nephropathy hypersensitivity impaired hepatic function Decreases effect of Dig; increases chance of lithium toxicity WSU CONH STUDY GUIDE FOR NLN PHARMACOLOGY EXAM (REVISED 6/3/2013) 58 Drug Use and dosage Side effect Teaching and labs contraindication Sucralfate (Carafate)
Antiulcer Gastro-protective agent Protects the ulcer from gastric acid by forming an adherent coating; it absorbs pepsin decreasing its activity. Duodenal ulcer Short term with gastric ulcer esophageal ulcer related to radiation or chemotherapy Side effects: constipation nausea
No antacid use within hour of this medication
Avoid gastric irritants such as caffeine, alcohol, smoking and spicy foods.
Avoid use with: Chronic kidney failure
Decreases absorption of Cipro, Dig, Dilantin, Tetracycline (so take these med 2 hours apart from Sucralfate)
Normal level 10-20. toxic level (> 20) may develop quickly bronchospasms asthma bronchitis emphysema
Side effects: Tachycardia Seizures N/V, anorexia, Adverse effects/toxicity: restlessness, agitation, HA, and insomnia note: restlessness could be due to toxicity or hypoxia so close assessment is required PO: take with water and after meals. Wait 4-6 hours after IV to start PO. Take same time each day
Limit caffeine
Smoking decreases effect of med
Increases lithium excretion
Avoid use with: CAD, angina Renal or liver disease Pregnancy, lactation children CHF and acute viral can cause seizure (with high doses/levels) so avoid with seizure disorder unless bronchospasm is unresponsive to other treatments
WSU CONH STUDY GUIDE FOR NLN PHARMACOLOGY EXAM (REVISED 6/3/2013) 59 Drug Use and dosage Side effect Teaching and labs contraindication Tobramycin sulfate
Aminoglycoside Antibiotic
IV/IM Inhalation (TOBI) Ophthalmic (Tobrex) broad spectrum antibiotic Kills bacteria cell by affecting protein synthesis. Kill Gram negative infection. Inhalation preventative with cystic fibrosis (28 days on, 28 days off) Eye external eye infections Side effects: HA, paresthesia, skin rash, fevers. Adverse effects/toxicity: Nephrotoxicity and ototoxicity are two common toxicities associated with aminoglycosides. Eye itching, swelling REFER to sections on aminoglycosides (Gentamycin) Doses are based on weight Do not other meds In the same IV LAB Peak and Trough serum creatinine, BUN to monitor renal function Do not use with: Known sensitivity to other aminoglycosides Preexisting renal disease. Tolbutamide (Orinase)
Antidiabetic Sulfonylureas
Peak: 3-5 hours Duration: 6-12 hours
Mild to moderately severe, stable Type 2 Diabetes May be used as adjunct therapy for Type 1 Diabetes but not sole medication
Give 1-2 x day after meals 1-2 weeks of medication may be required for full therapeutic effect
Side effects: GI distress Pruritus, rash (may stop on own) Photosensitivity Adverse effects/toxicity: Alcohol may cause disulfiram like reaction (flushing, palpation and nausea, flushing of skin). Hypoglycemia due to too much med, drug interactions, N/V, inadequate food intake. Monitor blood sugars including fasting and HgbA1C Teach Signs and symptoms of hypoglycemia and notify prescriber if they occur. Wear medic alert bracelet or tag Avoid alcohol Avoid use with: Allergy to sulfa or urea
Beta adrenergic blocking agents (betablockers) can suppress insulin release and delay response to hypoglycemia
Consult dr. when pregnant WSU CONH STUDY GUIDE FOR NLN PHARMACOLOGY EXAM (REVISED 6/3/2013) 60 Drug Use and dosage Side effect Teaching and labs contraindication Triazolam (Halcion)
sedative hypnotic Anxiolytic Benzodiazepine
Has rapid onset (15-30 mins.) Peak 1-2 hours Duration 6-8 hours short term management of insomnia (4 weeks) characterized by difficulty falling asleep, frequent wakeful periods Drowsiness, lethargy, confusion sleepwalking Adverse effects/toxicity: Physical dependence Seizures (with rapid withdrawal) With overdose: coma, respiratory depression, paradoxical anxiety Do not use in addictive prone pt. Monitor symptoms of overdose (slurred speech, confusion, somnolence, impaired coordination and coma). following long term use, tolerance may develop so do not stop taking abruptly
Avoid use with: Known sensitivity Alcohol intoxication Suicidal ideas Pregnancy, lactation Trihexyphenidyl HCl (Artane)
Anticholinergic Antispasmodic
Treat Parkinsons disease. Diminishes hyper- salivation; rigidity and irregular movements in Parkinsons. Use to control drug-induced extra- pyramidal side effects Side effects: Drowsiness Decrease urine output, retention or hesitancy Dry mouth Constipation Adverse effects/toxicity: Paralytic ileus
Monitor I& O increase fluids, bulk and exercise void before taking to reduce urinary retention Avoid driving or other hazardous activities as drowsiness may occur. Avoid OTC such as cough medicine with alcohol. Very dose sensitive
Avoid use with: narrow angle glaucoma, myasthenia gravis GI obstruction WSU CONH STUDY GUIDE FOR NLN PHARMACOLOGY EXAM (REVISED 6/3/2013) 61 Drug Use and dosage Side effect Teaching and labs contraindication Vincristine sulfate (Oncovin)
IS a vesicant; administer into the side arm portal of a freely flowing IV.
Hyaluronidase is given if this vesicant should infiltrate. May apply heat to site to disperse drug and minimize sloughing.
Acute lymphoblastic and other leukemias lymphosarcoma, Hodgkins disease breast and lung cancers Major toxicities occur in the hematopoietic, integumentary, neurologic and reproductive, system. Peripheral neuropathy Paralytic ileus (more common in young children) Alopecia Adverse effects/toxicity: Neurotoxicity - loss of sensation of the soles of feet and fingertips Depression of the Achilles reflex is the earliest sign of neuropathy Children are especially likely to develop neuro changes
Neutropenic precautions prn Assess hand grasp and deep tendon reflexes
Maintain a regimen against constipation and paralytic ileus; report a change in bowel habits.
Vesicant safety precautions: Good vein, prefer central line access or fresh butterfly stick chemo-trained nurse remain during infusion have antidote handy Avoid use with: Obstructive jaundice Pre-existing neuromuscular disease Active infection Pregnancy, lactation
Bronchospasm may occur in pt previously treated with mitomycin
WSU CONH STUDY GUIDE FOR NLN PHARMACOLOGY EXAM (REVISED 6/3/2013) 62 Drug Use and dosage Side effect Teaching and labs contraindication Vitamin B 6
(Pyridoxine HCl)
Water-soluble vitamin Absorbed by GI tract
s/s of deficiency: Lack of energy Decreased brain functioning skin lesions, conjunctivitis Prevention and treatment of pyridoxine deficiency (see causes) Co-enzyme in amino acid metabolism and red blood cell production Treats acute toxicity of INH, hydralazine.
Side effects: Pain at injection site Adverse effects/toxicity: Neuropathy Ataxia seizures Causes of deficiency: Alcoholism Malabsorption disorders Oral contraceptives Dietary sources: green leafy veg. organ meats, fish, poultry legumes, chickpeas bananas whole grains, potatoes Use with caution: Renal disease Cardiac disease
Common drug interactions: INH, hydralazine, oral contraceptives Reverses or antagonizes effects of levodopa. Vitamin B12
(see entry under Cyanocobalamin)
Vitamin C (Ascorbic acid)
Water soluble vitamin
s/s of Deficiency which is called Scurvy Malaise, lethargy pinpoint hemorrhages bleeding gums, rough skin and blotchy spots especially legs Protects connective tissue, strengthens blood vessel walls, forms scar tissue, provides matrix for bone growth Supports immune system helps in absorption of iron and to metabolize amino acid acidifies urine Side effects: Rare at normal doses
Adverse effects/toxicity: crystalluria
Increases absorption of Iron Mix oral solutions with food
Causes of deficiency: Normal aging Alcohol Other meds
Dietary Sources: citrus fruits, cantaloupe, strawberries, broccoli, cabbage, cauliflower tomatoes Avoid use with: Prone to kidney stones
Megadoses of Vit. C can interfere with absorption of Vitamin B12. WSU CONH STUDY GUIDE FOR NLN PHARMACOLOGY EXAM (REVISED 6/3/2013) 63 Drug Use and dosage Side effect Teaching and labs contraindication Vitamin D2 (Ergocalciferol)
Fat-soluble vitamin
s/s deficiency which is called rickets bones fail to calcify bowed legs osteomalacia muscle spasm
Calcium and phosphate metabolism Remember calcium and phosphorus are inverse (high one, lower other) Necessary to develop and maintain strong bones osteomalacia and osteoporosis hypo- parathyroidism Treat and prevent rickets
Side effects: Uncommon at normal doses Metallic taste
Dietary Sources: Egg yolks fortified cereals and milk Cod liver oil some fish
Also obtained from sunlight
Avoid use with: Hypersensitivity to Vit. D Hypercalcemia Hyper- phosphatemia WSU CONH STUDY GUIDE FOR NLN PHARMACOLOGY EXAM (REVISED 6/3/2013) 64 Drug Use and dosage Side effect Teaching and labs contraindication Vitamin E (alpha-tocopherol)
Fat-soluble vitamin
s/s deficiency: Hemolytic anemia
Dietary supplement Hemolytic anemia in neonates Topical to chapped skin Prevents cell membrane damage protects against blood clot development
Avoid mineral oil Vitamin K1 (Aquamephyton) (Phytonadione)
Fat soluble vitamin
s/s deficiency: Deficiency causes hemorrhage.
Given as antidote for Coumadin (warfarin) overdose. Onset IV = 6 hours
See entry under Warfarin (Coumadin) Promotes liver synthesis of clotting factors
Given to newborns to prevent bleeding Given as antidote for coumadin toxicity. Also reverses hypo- prothrombinemia from various causes
Side effects: Swelling and pain at injection site
Adverse effects/toxicity: Hypersensitivity or anaphylaxis like reaction Bronchospasm, Cardiac arrest
SQ administration preferred over IM. Labs: Monitor PT/INR (see note under warfarin) Causes of deficiency: fat malabsorption medication Dietary Sources: Asparagus, broccoli, cabbage, Green leafy vegetables Green tea Tomatoes
Avoid use with: Known hypersensitivity to med WSU CONH STUDY GUIDE FOR NLN PHARMACOLOGY EXAM (REVISED 6/3/2013) 65 Drug Use and dosage Side effect Teaching and labs contraindication
Warfarin sodium (Coumadin)
ORAL anticoagulant
To reserve hyperanticoagulation (1) Hold and/or skip doses of Coumadin (2) Antidote which is Vitamin K1 (Aquamephyton)
Coumadin interferes with synthesis of clotting factor(s) that require Vit. K.
Given PO.
Has narrow therapeutic range. Can take 1 week for Therapeutic effect
PT level will be maintained at 1.5 2.5 the times the control value (which is 12-15 sec.) INR range from 2.0- 3.0 (control 1.0) Labs need monitored often (sometimes 2-3 x week) initially, then are decreased over time Side effects: Ecchymotic skin GI & skin problem Hypotension thrombocytopenia
Adverse effects/toxicity: Bleeding is the major adverse effect.
Coumadin may be started while pt is still on continuous IV heparin therapy). Heparin is tapered off slowly over 2-3 days. Pt. remains on oral Coumadin. Often given in the evening with lab draws in the morning it must be taken same time each day Avoid or use consistently foods high in Vit. K May be long-term medication depending on reason for medication Teach bleeding precautions Observe closely and report s/s bleeding
Avoid use with: hemorrhaging or bleeding tendencies malignant hypertension past history of allergic reaction to Coumadin
Many, many meds have drug interactions with Coumadin