Salarsaeedimodule1 MicrobNOT COMPLETE 3 PDF
Salarsaeedimodule1 MicrobNOT COMPLETE 3 PDF
Salarsaeedimodule1 MicrobNOT COMPLETE 3 PDF
has identified the culture of Gr + cocci, which are somewhat elongated, arranged in
pairs or short chains, form a capsule, on blood agar yield of alpha-hemolysis. Is this
man a carrier of some kind of pathogen of microorganism?
Streptococcus pneumoniae
Streptococcus pyogenes
Streptococcus salivarium
Streptococcus feacalis
Peptostreptococcus
Confinement to bed patient has a rise in temperature of body, cough occurrence with
a lot of sputum secretion, pain in the chest. Gr“+” cocci, located in pairs were
revealed in the sputum. What microorganism is the most probable agent of infection?
Legionella pneumophilla
Staphylococcus aureus
Klebsiellа pneumonia
Mycoplasma pneumonia
Streptococcus pneumoniае
During the bacteriological tests of the purulent secreta from urethra, there were found
bacteria, which according to Gram were negatively staining, looked like coffee beans.
These bacteria were splitting glucose and maltose to acid, they were located inside
the leucocytes. Name these microorganisms.
Trichomonas vaginalis
Chlamidia trachomatis
Haemophilus vaginalis
Neisseria gonorrhoeae
Calymmatobacterium granulomatis
Gr“-“ diplococci, having the same form as coffee beans were revealed during
bacterioscopical research of nasopharyngeal mucus of 2,5-year-old child with
nasopharyngitis. What organs of child most probably will be affected firstly if these
microorganisms get to blood?
Renal glomerules
Mitral valves
Meninges
Urogenital tract
Lymphatic nodes
A doctor-ophthalmologist examined a sick child with the phenomena of purulent
cerato-conjuctivitis and supposed that it is a blenorrhea. What methods of laboratory
diagnostics can be used to confirm the diagnosis?
Microscopic and biological
Microscopic and bacteriological
Microscopic and phage diagnostics
Bacteriological and biological
Phage diagnostics and allergic
Pure cultures of coccid microorganisms were isolated from the urethra of the patient
with urethritis of sluggish course. The isolated microorganism ferments only glucose
to acid in Hiss series tubes. Name the species of the isolated microorganism.
Neisseria gonorrhoeae
Neisseria meningitidis
Staphylococcus aureus
Streptococcus pyogenes
Enterococcus faecalis
At microscopy of sputum from patient with pneumonia, a lot of Gr “+” lancet shaped
diplococci, which are surrounded by capsule, were revealed. Which microorganisms
were revealed in smear?
Streptococcus pneumoniae
Klebsiella pneumoniae
Chlamidia pneumoniae
Staphylococcus aureus
Escherichia coli
A 32-year-old woman has a high fever, severe headache, enlarged liver and spleen,
and visible elements roseola rash on the skin of the abdomen during the week. The
doctor diagnosed “typhoid fever”. What pathological material should be sent for
examination to clarify the diagnosis?
Feces
Blood smear from a finger
Serum
Bile
Blood from the cubital vein,10 ml.
The newborn has hyperemia, swelling in the mucous membrane of the mouth, slight
erosion with viscous mucous-purulent discharge. A large number of leukocytes
containing gram-negative diplococci are found in the smears of the secretions. The
same microorganisms are located outside the leukocytes. What diagnosis can be
assumed?
Congenital syphilis
Gonococcal stomatitis
Staphylococcal stomatitis
Toxoplasmosis
Blenorrhea
The patient with an abscess, which arose after tooth extraction, got to the
maxillofacial department. The doctor has suggested that the cause of the purulent-
inflammatory process is staphylococcus. What nutrient medium should be used to
isolate this pathogen?
Marten’s medium
Endo agar
Klauberg’s medium
Blood agar
mannitol-salt-agar
After removal of the tooth, purulent-inflammatory process began in the patient. The
test material was cultured on mannitol-salt agar. Which microorganisms are suppouse
to be identified using this medium?
Staphylococcus aureus
Escherichia coli
Pseudomonas
Klebsiella
Enterococci
After faeces had been cultivated on the medium, red colonies with metallic sheen and
colorless colonies appeared. What is the nutrient medium?
Endo agar
Fortner’s medium
Mannitol-salt agar
Ploskirev’s medium
Kitt-Tarozzi medium
Microorganisms, located as a cluster of grapes, were revealed in a pus from a
furuncle. What organisms were revealed?
Staphylococci
Diplococci
Micrococci
Streptococci
Tetracocci
The bacteriological method for the diagnosis of typhoid fever involves handling the
material from the patient depending on the duration of the disease. What material
should be used in the first week of the disease?
Blood
Saliva
Faeces
Urine
Liquor
In the microscopic examination of the feces of a patient with diarrhea, bent rods in
the form of a coma, located as a «flock of fish», were found. What pathogen are these
morphological features inherent in?
Cholera
Tuberculosis
Escherichiosis
Salmonellosis
Dysentery
In a patient with suspected typhoid fever, a pure culture of gram-negative motile rods
is isolated, lactose-negative, glucose is decomposed to acid and gas, hydrogen sulfide
is formed. What research should be done to determine the type of these bacteria?
Sero-identification
Identify flagella
Investigate additional biochemical properties
Study cultural properties
Detect toxicity
The infectious hospital received a patient complaining of pain in the lower abdomen
on the left, frequent meager defecation with impurities of mucus, blood, tenesmus.
What disease can be suspected?
Shigellosis
Typhoid fever
Escherichiosis
Yersiniosis
Cholera
The patient complained of frequent, large quantities of rare feces in the form of «rice
water», followed by frequent vomiting with excretion of watery vomiting, thirst.
What disease is characterized by such symptoms?
Cholera
Typhoid fever
Yersiniosis
Escherichiosis
Herpes
From clinical material of patient with purulent skin lesions (carbuncles) a smear was
made, with following Gram staining. Staphylococcal infection is suspected. If so,
then in the smear should be seen:
gram-negative cocci
gram-positive cocci
gram-variable cocci
gram-negative rods
gram-positive rods
A pure culture of gram-positive cocci was isolated from purulent skin lesions.
Determination of what enzyme activity was conducted for the differentiation of
staphylococci and streptococci?
the activity of DNAses
coagulase activity
oxidase activity
catalase activity
peroxidase activity
Staphylococci exhibit the following type of hemolysis when cultivated on blood agar:
α - hemolysis
β – hemolysis
δ – hemolysis
κ – hemolysis
ζ – hemolysis
Pure culture of microorganisms was obtained from a patient with purulent skin
lesions. Gram-stained smears show gram-positive cocci in the form of clusters. S.
aureus infection is suspected. How to differentiate S. aureus from other types of
staphylococci? What is the defining reaction?
determination of catalase activity
determination of oxidase activity
determination of coagulase activity
determination of ability to hemolysis
determination of lypase activity
Food poisoning symptoms are observed in the patient: nausea, vomiting, diarrhea,
abdominal pain. Symptoms appeared within hours after eating suspicious foods
(cream cakes). Staphylococcus toxin poisoning is suspected. Which treatment
approach will be most effective in this case?
antibiotic therapy
antibiotic therapy + symptomatic treatment (measures of detoxification)
symptomatic treatment (measures of detoxification)
phagotherapy
no treatment is needed
In the development of toxic shock induced by the exotoxin of S. aureus TSST-1, the
following symptoms will be most pronounced:
nausea, vomiting, diarrhea in the form of rice water
diarrhea, abdominal pain, headache
muscle spasms, opisthotonus
fever, hypotension, cytokine storm
necrotic tissue damage
What are the pathological conditions of staphylococcal etiology caused by the action
of exotoxins?
Endocarditis
"scalded skin syndrome"
Mastitis
Osteomyelitis
Carbuncles
Which of the following antimicrobials will be most effective for MRSA infection?
Cefotaxime
Gentamicin
Clarithromycin
Trimethoprim
Teicoplanin
What components of enriched medium are used for the selection of streptococci?
copper ions
bile salts
NaCl salts
glucose or mannitol
blood or serum
The division of streptococci into groups by Lancefield is carried out on the basis of:
determination of cell wall polysaccharides
determination of the capsular polysaccharides
detection of flagella antigens
determination of ability to hemolysis
determination of the type of hemolysis
Is this the diagnosis of infection when streptococci are detected directly from the
clinical material of the oropharynx by Gram staining in patients with pharyngitis?
yes, because streptococci are not representative of the oropharyngeal flora
yes, since pathogenic streptococci are very easy to differentiate from non-pathogenic
ones
no, because streptococci are not excreted from oropharyngeal material at all
no, since pathogenic streptococci are easily confused with non-pathogenic
streptococci, representative of the oropharyngeal flora
no, since this staining method is not used at all for streptococcus imaging.
The main mechanism for the spread of group A streptococci in the human population
is:
contact-household
air-drop
Sexual
Transmission
Alimentary
Which test will be most informative to confirm the diagnosis of acute pyelonephritis
of streptococcal etiology?
detection of serum ASO antibodies
detection of serum ASS antibodies
detection in the serum of antibodies to the M antigen
detection of serum antibodies to group A antigen
detection in the serum of antibodies to the F antigen
With using of which antibiotic could S.pyogenes be identified among other group A
streptococci?
Penicillin
Methicillin
Vancomycin
Bacitracin
Novobiocin
Which medium is selective for the isolation of Streptococcus agalactiae from clinical
material?
salt agar with mannitol
Lim broth
MacConkey medium
medium enriched with blood or serum
medium with bacitracin
A pure culture of streptococci was isolated from pneumonia patient on blood agar
medium. It has been observed autolysis of colonies of microorganisms when aging.
What kind of streptococci is characterized by such properties?
Streptococcus pneumoniae
Streptococcus agalactiae
Streptococcus pyogenes
Streptococcus mitis
Streptococcus salivarius
On the 8th day after childbirth, lactational mastitis was diagnosed in woman. Which
pathogenic agent causes postnatal mastitis?
Staphylococcus aureus
Pseudomonas aeruginosa
Diplococcus
Steptococcus
Escherichia coli
Child with a diagnosis “staphylococcal sepsis” was been hospitalized. What medium
is necessary to inoculate a patient`s blood to reveal a pathogen?
Sugar broth
Meat peptide agar
Yolk-salt agar
Buchin’s medium
Ploskirev’s/SS medium
To confirm streptococcal sepsis, 10 cm3 of blood was taken from the patient and
cultivated with serum broth. In which medium should culture be cultivated for colony
obtaining?
Serum agar
Meat peptone agar
Meat water medium
Endo medium
Levin’s/EMB medium
A patient was been hospitalized with complains of severe headache, rigidity of the
occipital muscles, fever and vomiting. What pathological material is needed to use
for bacteriological confirmation of the preliminary diagnosis - meningitis?
Cerebrospinal fluid
Vomiting masses
Feces
Mucus from the throat
Urine
During the Widal's agglutination test it was noticed that the ratio of antibody titers
against O-antigens of S.typhi in the patient's serum was 1:200. For which disease is it
characteristic?
Typhoid fever
Paratyphi B
Salmonellosis
Shigellosis
Paratyphi A
Feces of a restaurant cook are examined with the help of bacteriological methods. On
bismuth-sulfite agar little black colonies with metallic sheen have grown. What genus
of microorganisms can it be?
Salmonellae
Staphylococci
Streptococci
Shigellae
Escherichia
A pure Salmonella typhi culture was isolated from a patient suspected of typhoid
fever. What medium is NOT used for the pure culture isolation?
Olkenitsky
Mannitol-salt agar
Endo’s
Ploskirev’s
BSA (bismuth-sulfite agar)
From the patient with suspected typhoid fever blood for hemoculture was taken.
What medium is used to confirm the diagnosis?
Bile broth
Kitt-Tarocci
Sugar broth
Magnesium medium
Serum broth
Shigella sonnei was isolated from defecation of patient with intestinal infection.
Which of the following serological tests was used to identify an isolated pure culture?
Agglutination test
The reaction of precipitation
Neutralization reaction
Lysis reaction
Fixation of complement
The patient has diarrhea, vomiting, dehydration, feces like “rice water” and have no
fecal smell. What pathogen caused the disease?
Vibrio cholerae
EPEC (Enteropathogenic Escherichia coli)
Enteroviruses
Shigella sonnei
Salmonella typhi
As a result of feces inoculation onto alkaline peptone water a growth in the form of
tender bluish pellicle was revealed. Microscopy revealed Gram negative curved rods.
What disease could these microorganisms cause?
Cholera
Escherichiosis
Shigellosis
Proteus induced infection
Salmonellae induced gastroenteritis
A patient was brought into the infectional disease hospital on the 8th day since the
disease onset. The patient complains of headache, malaise and weakness. Widal
agglutination test results with blood sample diluted 1:400 and typhoid fever O-
diagnosticum were positive. What diagnosis can be made based on the results of this
test?
Typhoid fever
Dysentery
Leptospirosis
Tuberculosis
Cholera
Streptococci are known to have hemolytic properties. What nutrition medium can be
applied to study these properties?
Blood agar
Endo agar
Hiss’ medium
MacConkey agar
Meat peptone agar
For determining of the infectious agent species taken from an organism of the patient
with previous diagnosis “Cholera”, one of identification stages is revealing of its
monotrichal motility. What method is used for this purpose?
Method of the "hanging" or "crushed" drop
Gram staining method
Loeffler staining method
Method of peptone water inoculation
Method of peptone agar inoculation
A tourist H. from a country with endemic cholera arrived to the city two weeks ago.
Practically healthy. What anti-epidemic measure for the tourist should be taken?
No epidemic measures should be taken
Bacteriological examination
Compulsory hospitalization in an infectious hospital
Hospitalization in a ward for 5 days
Observation for 5 days
From vomit of patient with cholera Gram-negative, motile vibrios were isolated.
What diagnostic products used to determine the serovar of isolated culture?
Type Serum of Inaba and Ogawa
Typing bacteriophages
Polyvalent phages
Fluorescent serum
Normal serum
The patient complained of frequent, large quantities of rare feces in the form of «rice
water», followed by frequent vomiting with excretion of watery vomiting, thirst.
What disease is characterized by such symptoms?
Typhoid fever
Cholera
Yersiniosis
Escherichiosis
Herpes
In which case a person should not interrupt his / her activity (work or school
attendance)?
Yung man, 25 years old, was diagnosed with S.flexneri, works in café as a cook
8-year-old sibling of sick child with diagnosed infection caused by O157 STEC
serogroup, who study at school
Asymptomatic mother of 4-year-ald sick child with diagnosed Shigella dysenteriae
infection, who works in call-centre
Asymptomatic father of 2-year-old child with diagnosed O26 VTEC serogroup
infection, who works as hospital attendant
Asymptomatic woman, the wife of sick person with diagnosed Shigella sonnei
bacteremia, who takes care of old person at home
On the Endo medium, lactose-positive E. coli have the following colony color:
colorless
pale pink
white
golden
dark pink with metallic sheen
Among the surface antigens of bacteria, the most sensitive to the action of high
temperatures is:
O-antigen
lipid A LPS
K antigens
H antigen
endotoxin
Which of the following clinical symptoms is not characteristic for the initial period of
development of typhoid fever?
headache
diarrhea
dry cough
abdominal discomfort
constipation
A child attending kindergarten has typhoid fever. Which transmission path can be
excluded from the following list?
contact with a sick person
eating food contaminated by a sick person
using water contaminated by a sick person
using the means of hygiene of a sick person
contact with a sick animal
What are the characteristics of colonies of microorganisms that are most important in
differentiating Enterobacteriaceae grown on MacConkey medium?
size of colonies
the color of the colonies
the surface of the colonies
the edge of the colonies
growth rate on the medium
E. coli induce the development of urinary tract infections in the following cases:
up to 10%
10-20%
50%
60-70%
80%
In the presence of the ipaH gene, the following type of pathogenic E. coli can be
identified:
Enterotoxigenic (ETEC)
Enteropathogenic (EPEC)
Enteroinvasive (EIEC)
Enteroaggregative (EAEC)
Shiga-producing toxin (STEC)
E.coli was isolated from the clinical material specimens. PCR analysis revealed the
presence of eae genes. What pathological type of Escherichia was isolated?
Shiga-toxin producing (STEC)
Enteropathogenic (EPEC)
Enteroinvasive (EIEC)
Enterotoxigenic (ETEC)
Enteroaggregative (EAEC)
E.coli was isolated from the clinical material specimens. PCR analysis revealed the
presence of aggR genes. What pathological type of Escherichia was isolated?
Shiga-toxin producing (STEC)
Enteropathogenic (EPEC)
Enteroinvasive (EIEC)
Enterotoxigenic (ETEC)
Enteroaggregation (EAEC)
E.coli was isolated from the clinical material specimens. PCR analysis revealed the
presence of Stx1 genes. What pathological type of Escherichia was isolated?
Shiga-toxin producing (STEC)
Enteropathogenic (EPEC)
Enteroinvasive (EIEC)
Enterotoxigenic (ETEC)
Enteroaggregative (EAEC)
E.coli was isolated from the clinical material specimens. PCR analysis revealed the
presence of thermolabile toxin genes. What pathological type of Escherichia was
isolated?
Shiga-toxin producing (STEC)
Enteropathogenic (EPEC)
Enteroinvasive (EIEC)
Enterotoxigenic (ETEC)
Enteroaggregative (EAEC)
When interacted with the epithelium, structures similar to stacked-brick are formed
by bacteria of the following pathogenic E. coli types:
Enterotoxigenic (ETEC)
Enteroaggregative (EAEC)
Enteropathogenic (EPEC)
Enteroinvasive (EIEC)
Shiga-toxin producing (STEC)
Based on which two shigella serogroups has the appropriate vaccine been created?
Shigella dysenteriae and Shigella flexneri
Shigella flexneri and Shigella sonnei
Shigella sonnei and Shigella boydii
Shigella dysenteriae and Shigella sonnei
Shigella flexneri and Shigella boydii
Microscopic examination of the film, which appeared in peptone water after 6 hours
after cultivating feces, showed curved motile Gram-negative rods. Spores and
capsules do not form. What are microorganisms?
Spirochaetes
Vibrios
Clostridias
Corynebacterias
Spirillas
From patients with cholera feces were taken. In what liquid medium is recommended
to cultivate this material for isolating Vibrio cholerae?
Meat-peptone broth
1% alkaline peptone water
1% glucose broth
10% serum broth
10% bile broth
From a patient with a diagnosis of "cholera" was isolated pure culture of moving
vibrios. To which group of flagellated bacteria does this pathogen belong?
Amphitrichous
Lophotrichous
Monotrichous
Peritrichous
Vibrio don’t have flagella
From the vomit mass of a patient there were isolated very motile, slightly curved,
Gram-negative rods which react positively with Inaba's diagnostic serum. What
symptoms, most probably, will appear with the treatment absent?
Endotoxic shock
Bacteremia
Dehydration
Skin rash
Ulcerous damages of intestine
A vomiting mass of patient with suspected cholera was sent to the bacteriological
laboratory. A smear “hanging drop” was prepared from the sample. Which method of
microscopy will be used to reveal causative agent due to its motility?
Phase-contrast
Electron microscopy
Immune electron
Luminescent
Immerse type
A girl, 18 years old, from rural area of India has profuse diarrhea with fluid loss up to
8 liters a day. Which of the following microorganisms may be a causative agent of
this infection?
Shigella dysentheriae
Campylobacter jejuni
Enteropathogenic E.coli
Salmonella typhi
Vibrio cholera