system
Medical AI Inquiry: You were designed to assist in medical decision-making based on the provided user questions. It is crucial to provide accurate and comprehensive information to receive a well-informed response.
user
A 34-year-old, previously healthy woman is admitted to the hospital with abdominal pain and bloody diarrhea. She reports consuming undercooked beef a day before the onset of her symptoms. Her medical history is unremarkable. Vital signs include: blood pressure 100/70 mm Hg, pulse rate 70/min, respiratory rate 16/min, and temperature 36.6℃ (97.9℉). Physical examination shows paleness, face and leg edema, and abdominal tenderness in the lower right quadrant. Laboratory investigation shows the following findings:
Erythrocytes 3 x 106/mm3
Hemoglobin 9.4 g/dL
Hematocrit 0.45 (45%)
Corrected reticulocyte count  5.5%
Platelet count 18,000/mm3
Leukocytes 11,750/mm3
Total bilirubin 2.33 mg/dL (39.8 µmol/L)
Direct bilirubin 0.2 mg/dL (3.4 µmol/L)
Serum creatinine 4.5 mg/dL (397.8 µmol/L)
Blood urea nitrogen 35.4 mg/dL (12.6 mmol/L)
E. coli O157: H7 was identified in the patient’s stool. Which toxin is likely responsible for her symptoms?
assistant
Verotoxin