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Prenatal Rh screening — USMLE Step 3 MCQ

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EasyOB/GYN (prenatal care, contraception, screening)Prenatal Rh screeningUSMLE Step 3

A 25-year-old G1P0 woman is at 8 weeks' gestation at her first prenatal visit. She has no prior antibody testing. Which of the following is the most appropriate screening recommendation?

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

Reveal the answer and explanation

Correct answer: A — Rh(D) blood type and antibody screen now

Explanation lettering: D = shown as A · E = shown as D · A = shown as E

Pregnant patients should have Rh(D) blood typing and antibody screening at the first pregnancy-related visit.

Reference: USPSTF Rh incompatibility screening recommendation; ACOG guidance