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Gestational diabetes — USMLE Step 3 MCQ

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ModerateOB/GYN (prenatal care, contraception, screening)Gestational diabetesUSMLE Step 3

A 29-year-old woman at 24 weeks' gestation has an uncomplicated singleton pregnancy. BMI is 28 kg/m2. She has no diabetes history, no polyuria, and no abnormal early glucose testing. Blood pressure is normal. Which of the following is the most appropriate screening recommendation?

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Reveal the answer and explanation

Correct answer: B — Screen for gestational diabetes now

Asymptomatic pregnant patients should be screened for gestational diabetes at 24 weeks of gestation or later.

Reference: USPSTF A and B Recommendations, 2025-2026: https://www.uspreventiveservicestaskforce.org/uspstf/recommendation-topics/uspstf-a-and-b-recommendations