A 3-year-old boy is brought to emergency at night by his mother after experiencing a tonic-clonic seizure. Earlier in the evening, he had abdominal pain and three loose, bloody stools. His temperature is 102 F. There is no nuchal rigidity. A blood smear and serum studies are shown:
Hemoglobin 14.2 g/dL
Leukocytes 13,000/μL
Platelets 250,000/μL
LDH 200 U/L (NR 140-280)
Which of the following is the most likely explanation for these findings?
Hemolytic uremic syndrome
Henoch-Schönlein purpura
Idiopathic seizure disorder
Rotavirus
Shigellosis
