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Nausea and vomiting of pregnancy — USMLE Step 3 MCQ

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EasyOB/GYN (prenatal care, contraception, screening)Nausea and vomiting of pregnancyUSMLE Step 3

A 24-year-old woman at 8 weeks' gestation has morning nausea and occasional vomiting. She can tolerate fluids and has normal vital signs, no abdominal tenderness, and no ketonuria. Ultrasound confirms a viable intrauterine pregnancy. Which of the following is the most likely explanation for this patient's findings?

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

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Correct answer: C — Normal pregnancy-related nausea associated with early gestation

Mild nausea and vomiting are common in early pregnancy; severe dehydration, ketonuria, weight loss, or abnormal ultrasound findings would suggest alternative pathology.

Reference: ACOG nausea and vomiting of pregnancy guidance