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OSA diagnosis — USMLE Step 3 MCQ

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ModerateInternal Medicine (Chronic Management)OSA diagnosisUSMLE Step 3

A 55-year-old man with resistant hypertension reports loud snoring and morning headaches. His wife has witnessed pauses in breathing. BMI is 36 kg/m2 and neck circumference is increased. He has no heart failure symptoms. Which of the following is the most likely diagnosis?

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

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Correct answer: D — Obstructive sleep apnea

Resistant hypertension, obesity, snoring, witnessed apneas, and morning headaches suggest obstructive sleep apnea.

Reference: Current US clinical practice standards and USMLE Step 3 content outline, https://www.usmle.org/exam-resources/step-3-materials