Overview of Respiratory System
Overview of Respiratory System
Overview of Respiratory System
Glottis – opening
Opens to allow passage of air
Closes to allow passage of food
Bronchi – bronchioles – teminal bronchioles – resp bronchioles - *tracheobronchial tree 150ml of air
If 1:2 – adm O2 - < 40% Concentration to prevent atelectasis & retinopathy or blindness.
Etiologic agents:
1. Streptococcus pneumoniae (pnemococcal pneumonia)
2. Hemophilus pneumoniae(Bronchopneumonia)
3. Escherichia coli
4. Klebsiella P.
5. Diplococcus P.
Predisposing factors:
1. Smoking
2. Air pollution
3. Immuno-compromised
a. AIDS – PLP
b. Bronchogenic CA - Non-productive to productive cough
4. Prolonged immobility – CVA- hypostatic pneumonia
5. Aspiration of food
6. Over fatigue
S/Sx:
1. Productive cough – pathognomonic: greenish to rusty sputum
2. Dyspnea with prolonged respiratory grunt
3. Fever, chills, anorexia, gen body malaise
4. Wt loss
5. Pleuritic friction rub
6. Rales/ crackles
7. Cyanosis
8. Abdominal distension leading to paralytic ileus
Nsg Mgt:
1. Enforce CBR
2. Strict respiratory isolation
3. Meds:
a.) Broad spectrum antibiotics
Penicillin or tetracycline
Macrolides – ex azythromycin (zythromax)
b.) Anti pyretics
c.) Mucolytics or expectorants
4. Force fluids – 2 to 3 L/day
5. Institute pulmonary toilet-
a.) Deep breathing exercise
b.) Coughing exercise
c.) Chest physiotherapy – cupping
d.) Turning & reposition - Promote expectoration of secretions
6. Semi-fowler
7. Nebulize & suction
8. Comfy & humid environment
9. Diet: increase CHO or calories, CHON & vit C
10. Postural drainage - To drain secretions using gravity
Mgt for postural drainage:
a.) Best done before meals or 2 – 4 hrs after meals to prevent Gastroesophageal Reflux
b.) Monitor VS & breath sounds
Normal breath sound – bronchovesicular
c.) Deep breathing exercises
d.) Adm bronchodilators 15 – 30 min before procedure
e.) Stop if pt can’t tolerate procedure
f.) Provide oral care – it may alter taste sensation
g.) C/I – pt with unstable VS & hemoptysis, increase ICP, increase IOP (glaucoma)
Normal IOP – 12 – 21 mmHg
11. HT:
a.) Avoidance of precipitating factors
b.) Complication: Atelectacies & meningitis
c.) Compliance to meds
Predisposing factors:
1. Malnutrition
2. Overcrowding
3. Alcoholism
4. Ingestion of infected cattle (mycobacterium BOVIS)
5. Virulence
6. Over fatigue
S/Sx:
1. Productive cough – yellowish
2. Low fever
3. Night sweats
4. Dyspnea
5. Anorexia, general body malaise, wt loss
6. Chest/ back pain
7. Hempotysis
Diagnosis:
1. Skin test – mantoux test – infection of Purified CHON Derivative PPD
DOH – 8-10 mm induration
WHO – 10-14 mm induration
Result within 48 – 72h
(+) Mantoux test – previous exposure to tubercle bacilli
Nursing Mgt:
1. CBR
2. Strict resp isolation
3. O2 inhalation
4. Semi fowler
5. Force fluid to liquefy secretions
6. DBCE
7. Nebulize & suction
8. Comfy & humid environment
9. Diet – increase CHO & calories, CHON, Vit, minerals
10. Short course chemotherapy
- Intensive phase
PZA – Pyrazinamide – given 2 mos/ after meals. S/E: allergic rxn, nephrotoxicity & hepatoxicity
Standard regimen
1. Injection of streptomycin – aminoglycoside
Ex. Kanamycin, gentamycin, neomycin
S/E:
a.) Ototoxicity – damage CN # 8 – tinnitus – hearing loss
b.) Nephrotoxicicity – monitor BUN & Crea
HT:
a.) Avoid pred factors
b.) Complications:
1.) Atelectasis
2.) Miliary TB – spread of Tb to other system
c.) Compliance to meds
- Religiously take meds
HISTOPLASMOSIS- acute fungal infection caused by inhalation of contaminated dust with histoplasma
capsulatum transmitted to birds manure.
S/Sx: Same as pneumonia & PTB – like
1. Productive cough
2. Dyspnea
3. Chest & joint pains
4. Cyanosis
5. Anorexia, gen body malaise, wt loss
6. Hemoptysis
Dx:
1. Histoplasmin skin test = (+)
2. ABG – pO2 decrease
Nsg Mgt:
1. CBR
2. Meds:
a.) Anti fungal agents
Amphotericin B (Fungizone)
S/E :
a.) Nephrotoxcicity check BUN
b.) Hypokalemia
b.)Corticosteroids
c.) Mucolytic/ or expectorants
3. O2 – force fluids
4. Nebulize, suction
5. Complications:
a.) Atelectasis
b.) Bronchiectasis COPD
6. Prevent spread of histoplasmosis:
a.) Spray breading places or kill the bird.
Predisposing factors:
1. Smoking – all COPD types
2. Air pollution
S/Sx:
1. Prod cough
2. Dyspnea on exertion
3. Prolonged expiratory grunt
4. Scattered rales/ rhonchi
5. Cyanosis
6. Pulmo HPN – a.)Leading to peripheral edema
b.) Cor pulmonary – respiratory in origin
7. Anorexia, gen body malaise
Dx:
1. ABG
PO2 PCO2 Resp acidosis
2.) BRONCHIAL ASTHMA- reversible inflammation lung condition due to hyerpsensitivity leading to
narrowing of smaller airway.
Predisposing factor:
1. Extrinsic Asthma – called Atropic/ allergic asthma
a.) Pallor
b.) Dust
c.) Gases
d.) Smoke
e.) Dander
f.) Lints
2. Intrinsic Asthma-
Cause:
Herediatary
Drugs – aspirin, penicillin, b blockers
Food additives – nitrites
Foods – seafood, chicken, eggs, chocolates, milk
Physical/ emotional stress
Sudden change of temp, humidity &air pressure
3. mixed type: combi of both ext & intr. Asthma
90% cause of asthma
S/Sx:
1. C – cough – non productive to productive
2. D – dyspnea
3. W – wheezing on expiration
4. Cyanosis
5. Mild apprehension & restlessness
6. Tachycardia & palpitation
7. Diaphoresis
Dx:
1. Pulmo function test – decrease lung capacity
2. ABG – PO2 decrease
Nsg Mgt:
1. CBR – all COPD
2. Meds-
a.) Bronchodilator through inhalation or metered dose inhaled / pump. Give 1st before corticosteroids
b.) Corticosteroids – due inflammatory. Given 10 min after adm bronchodilator
c.) Mucolytic/ expectorant
d.) Mucomist – at bedside put suction machine.
e.) Antihistamine
3. Force fluid
4. O2 – all COPD low inflow to prevent resp distress
5. Nebulize & suction
6. Semifowler – all COPD except emphysema due late stage
7. HT
a.) Avoid pred factors
b.) Complications:
- Status astmaticus- give epinephrine & bronchodilators
- Emphysema
c.) Adherence to med
BRONCHIECTASIS – abnormal permanent dilation of bronchus resulting to destruction of muscular & elastic
tissues of alveoli.
Predisposing factors:
1. Recurrent upper & lower RI
2. Congenital anomalies
3. Tumors
4. Trauma
S/Sx:
1. Productive cough
2. Dyspnea
3. Anorexia, gen body malaise- all energy are used to increase respiration.
4. Cyanosis
5. Hemoptisis
Dx:
1. ABG – PO2 decrease
2. Bronchoscopy – direct visualization of bronchus using fiberscope.
Nsg Mgt: before bronchoscopy
1. Consent, explain procedure – MD/ lab explain RN
2. NPO
3. Monitor VS
Nsg Mgt after bronchoscopy
1. Feeding after return of gag reflex
2. Instruct client to avoid talking, smoking or coughing
3. Monitor signs of frank or gross bleeding
4. Monitor of laryngeal spasm
- DOB
- Prepare at bedside tracheostomy set
S/Sx:
1. Productive cough
2. Dyspnea at rest – due terminal
3. Anorexia & gen body malaise
4. Rales/ rhonchi
5. Bronchial wheezing
6. Decrease tactile fremitus (should have vibration)– palpation – “99”. Decreased - with air or fluid
7. Resonance to hyperresonance – percussion
8. Decreased or diminished breath sounds
9. Pathognomonic: barrel chest – increase post/ anterior diameter of chest
10. Purse lip breathing – to eliminated PCO2
11. Flaring of alai nares
Diagnosis:
1. Pulmonary function test – decrease vital lung capacity
2. ABG –
a.) Panlobular / centrolobular emphysema
pCO2 increase
pO2 decrease – hypoxema resp acidosis Blue bloaters
b.) Panacinar/ Centracinar
pCO2 decrease
pO2 increase – hyperaxemia resp alkalosis Pink puffers
Nursing Mgt:
1. CBR
2. Meds –
a.) Bronchodilators
b.) Corticosteroids
c.) Antimicrobial agents
d.) Mucolytics/ expectorants
3. O2 – Low inflow
4. Force fluids
5. High fowlers
6. Neb & suction
7. Institute
P – posture
E – end
E – expiratory to prevent collapse of alveoli
P – pressure
8. HT
a.) Avoid smoking
b.) Prevent complications
1.) Cor pulmonary – R ventricular hypertrophy
2.) CO2 narcosis – lead to coma
3.) Atelectasis
4.) Pneumothorax – air in pleural space
9. Adherence to meds
RESTRICTIVE LUNG DISORDER
PNEUMOTHORAX – partial / or complete collapse of lungs due to entry or air in pleural space.
Types:
1. Spontaneous pneumothorax – entry of air in pleural space without obvious cause.
Eg. rupture of bleb (alveoli filled sacs) in pt with inflammed lung conditions
Eg. open pneumothorax – air enters pleural space through an opening in chest wall
-Stab/ gun shot wound
2. Tension Pneumothorax – air enters plural space with @ inspiration & can’t escape leading to over
distension of thoracic cavity resulting to shifting of mediastinum content to unaffected side.
Eg. flail chest – “paradoxical breathing”
Predisposing factors:
1.Chest trauma
2.Inflammatory lung conditions
3.Tumor
S/Sx:
1. Sudden sharp chest pain
2. Dyspnea
3. Cyanosis
4. Diminished breath sound of affected lung
5. Cool moist skin
6. Mild restlessness/ apprehension
7. Resonance to hyper resonance
Diagnosis:
1. ABG – pO2 decrease –
2. CXR – confirms pneumothorax
Nursing Mgt:
1. Endotracheal intubation
2. Thoracenthesis
3. Meds – Morphine SO4
- Anti microbial agents
4. Assist in test tube thoracotomy
Nursing Mgt if pt is on CPT attached to H2O drainage
1. Maintain strict aseptic technique
2. DBE
3. At bedside
a.) Petroleum gauze pad if dislodged Hemostan
b.) If with air leakage – clamp
c.) Extra bottle
4. Meds – Morphine SO4
Antimicrobial
5. Monitor & assess for oscillation fluctuations or bubbling
a.) If (+) to intermittent bubbling means normal or intact
- H2O rises upon inspiration
- H2o goes down upon expiration
b.) If (+) to continuous, remittent bubbling
1. Check for air leakage
2. Clamp towards chest tube
3. Notify MD
c.) If (-) to bubbling
1. Check for loop, clots, and kink
2. Milk towards H2O seal
3. Indicates re-expansion of lungs
When will MD remove chest tube:
1. If (-) fluctuations
2. (+) Breath sounds
3. CXR – full expansion of lungs