Bank of Krok testing to module n2

Staphylococci

Furuncle pus smear showed spherical microbes arranged in grape-like clusters. Name these microorganisms.

A. Staphilococci.

B. Diplococci.

C. Micrococci.

D. Streptococci.

E. Tetracocci.

18. A child with the diagnosis of staphylococcal sepsis was admitted to a hospital. What nutrient medium should be used for patient's blood inoculation to isolate the causative agent of this disease?

Ploskirev's medium.

Meat peptone broth.

Glucose peptone broth.

D. Buchin's medium.

E. Yolk-salt agar.

A 55-year-old patient is hospitalized to a surgical department with suspicion of sepsis. Choose the specimen which should be obtained for examination.

A. Liquor.

B. Blood.

C. Urine.

D.Pus.

E. Lymph node punctate.

112. Feces of a child with enteritis are resuspended in isotonic solution of sodium chloride, and a suspension drops applied onto selective medium: 10 % milk-salt or yolk-salt agar. What microorganisms are supposed to be isolated?

E. coli.

Klebsiella

Staphylococci.

Streptococci.

Enterococci.

* Staphylococcal etiology of infection was confirmed with bacteriological examination at patient with furunculosis. What basic method of microbiological diagnostics was used in this case?

Allergic

Bacteriological

Serological

Microscopic

Biological

*05* *08* Examination of a patient with pustular skin lesions allowed to isolate a causative agent that formon the blood agar roundish yellow middle-sized colonies surrouded by hemolysis zone. Smears from colonies contain irregular-shaped clusters of gram-positive cocci. The culture is oxydase- and catalase-positive, ferments mannitol and synthesizes plasmocoagulase. What causative agent was isolated?

Streptococcus agalactiae

*Staphylococcus aureus

Staphylococcus saprophyticus

Staphylococcus epidermidis

Streptococcus pyogenes

*Post –operative purulent complications into surgery wound took place in a surgical department. Microscopy of wound discharge revealed gram-positive spherical bacteria arranged in grape-like clusters. For differentiation of what microorganisms was coagulase test used in laboratory?

*Staphylococcus aureus from Staphylococcus epidermidis

Streptococcus pyogenes from Staphylococcus aureus

Staphylococcus epidermidis from Neisseria meningitidis

Streptococcus pyogenes from Enterococcus faecalis

Neisseria meningitidis from Streptococcus pneumonia

* A man, 65 years old, has suffered from purulent abscess on his neck. A culture of gram-positive cocci was isolated that possessed plasmocoagulase activity.

*Staphylococcus aureus

Staphylococcus epidermidis

Staphylococcus saprophyticus

Streptococcus pyogenes

“04” 8. Microbiology examinations are carried out in the neonatal department of a maternity hospital because of the suspicion of a hospital infection. S. aureus from several children and some things was isolated. What properties of isolated cultures should be examined to determine the source of infection?

Biochemical activity.

Chrornogenesis.

Antigenic structure.

Phage type.

Antibiotic sensitivity.

“06” 23. Cases of suppurative postoperative complications caused by staphylococcus have increased in a surgical unit. Which test should be used to determine the source of infection?

A. Drugs susceptibility test.

B. Serotyping test.

C. Aggression enzymes determination.

D.Toxin production.

E. Phage typing.

*07* At outbreak of hospital infection staphylococcal pure culture were isolated from patient, medical staff and some objects (items) from environment. What research should be carried out to establish identity of isolated staphylococci and know a source of hospital infection?

*Phage typing

Biovar typing

Pathogenecity revealing

Serotyping

Animal infection

*To reveal a source of infection with pathogenic staphylococcus at surgery department a research was made with usage of standard staphylococcal bacteriophages. What type of pure culture investigation isolated from different places was made?

Phage typing

Phage diagnostics

Phage indication

Phage therapy

Phage identification