skip to main content

Bariatric surgery micronutrients — USMLE Step 3 MCQ

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

ModerateSurgery (post-operative, follow-up)Bariatric surgery micronutrientsUSMLE Step 3

A 39-year-old woman is seen 6 months after Roux-en-Y gastric bypass. She has fatigue and paresthesias after stopping supplements. CBC shows macrocytic anemia and she tolerates oral intake. 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: B — Check and replace vitamin B12 and other bariatric micronutrients

Roux-en-Y gastric bypass can cause micronutrient deficiencies; lifelong supplementation and monitoring are required.

Reference: ASMBS bariatric nutrition guidelines