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Constipation alarm features — USMLE Step 3 MCQ

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ModerateAmbulatory Medicine / Primary CareConstipation alarm featuresUSMLE Step 3

A 62-year-old man has new constipation and 10-lb unintentional weight loss over 3 months. Hemoglobin is 11.2 g/dL with low ferritin. He has no prior colonoscopy and asks for a laxative. Which of the following is the most appropriate next step in management?

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Reveal the answer and explanation

Correct answer: CSchedule colonoscopy

New constipation with weight loss and iron deficiency anemia requires evaluation for colorectal cancer.

Reference: USPSTF colorectal cancer screening, https://www.uspreventiveservicestaskforce.org/uspstf/recommendation/colorectal-cancer-screening