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Celiac disease — USMLE Step 3 MCQ

Instant feedback + full explanation. One question, done properly.

HardInternal Medicine (Chronic Management)Celiac diseaseUSMLE Step 3

A 37-year-old woman has chronic bloating, diarrhea, and iron deficiency anemia. Tissue transglutaminase IgA is positive and total IgA is normal. She has been eating gluten and has not started dietary changes. Which of the following is the most appropriate next step in management?

Educational content. Not a substitute for clinical judgement or local policy.

Reveal the answer and explanation

Correct answer: CConfirm diagnosis with upper endoscopy and duodenal biopsy

Symptomatic adults with positive celiac serology are typically confirmed with duodenal biopsy before lifelong dietary treatment.

Reference: Current US clinical practice standards and USMLE Step 3 content outline, https://www.usmle.org/exam-resources/step-3-materials