Anemias USMLE Step 1 Practice Question
A 4 year old girl is brought to the emergency department with reduced urine output and pallor 5 days after an episode of bloody diarrhea at a petting zoo. Laboratory studies show thrombocytopenia, elevated creatinine, and schistocytes on peripheral smear. Which of the following organisms most likely caused this condition?
Answer choices
- ASalmonella typhi
- BEnterohemorrhagic Escherichia coli producing shiga like toxinCorrect answer
- CMycoplasma pneumoniae
- DClostridioides difficile
- EGiardia lamblia
- FEnteroinvasive Escherichia coli producing heat-labile toxin
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