KROK 1 2008 – Question 37 · KROK (Medicine) · Microbiology, Virology, and Immunology
Blood of a patient with presumable sepsis was inoculated into sugar broth. There appeared bottom sediment. Repeated inoculation into blood agar caused growth of small transparent round colonies surrounded by hemolysis zone. Examination of a smear from the sediment revealed gram-positive cocci in form of long chains. What microorganisms are present in blood of this patient?
- A. Staphylococci
- B. Sarcina
- C. Tetracocci
- D. Micrococci
- E. Streptococci
Hint
Look at how the cocci are arranged in the broth sediment; this characteristic arrangement, together with small haemolytic colonies, identifies the genus.
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