3 Days Of Bloody in Pediatrics — Case | Pediatric Infectious | SMLE Q#11088
SMLE Question #11088
Pediatrics
Pediatric Infectious
Objective: OBJ-113
Last updated: February 2026
A previously healthy 4-year-old boy is brought to the emergency department with 3 days of bloody diarrhea, abdominal pain, and decreased urine output. One week ago, he attended a family barbecue where several people later developed diarrhea. He appears pale and fatigued, with scattered petechiae on his legs. Hemolytic uremic syndrome is suspected. Which of the following is the most appropriate diagnostic test to identify the causative organism?
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