Bacteriology USMLE Step 1 Practice Question
A 7-year-old male presents to the pediatrician because his mother noticed a 'smoky' color to his urine. On questioning the mother, it is revealed that the child had a sore throat several weeks ago that was left untreated. Physical examination reveals hypertension and mild generalized edema. Urinalysis is significant for red blood cell casts. Which of the following accurately describes the microorganism responsible for this child's illness?
Answer choices
- AIt is catalase-positive
- BIt is coagulase-positive
- CIt is sensitive to bacitracinCorrect answer
- DIt causes alpha-hemolysis on blood agar
- EIt is sensitive to optochin
- FIt is CAMP test positive
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