Inflammatory Bowel Disease USMLE Step 1 Practice Question
A 24-year-old man presents with bloating, crampy abdominal pain, and diarrhea following ice cream consumption after recent viral gastroenteritis. Vital signs show HR 88 bpm, BP 118/76 mmHg, RR 16, temperature 37.2°C, and SpO2 98% on room air. Stool pH is 5.2, and hydrogen breath test is positive. Colonoscopy reveals normal mucosa without inflammation or ulceration. Which of the following is the most likely diagnosis?
Answer choices
- AIrritable bowel syndrome
- BPancreatic insufficiency
- CWhipple disease
- DLactose intoleranceCorrect answer
- ECeliac disease
- FBacterial overgrowth syndrome
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