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NBME 24 Answers

nbme24/Block 2/Question#2

A 45-year-old man comes to the physician because of ...

Oxygen saturation

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submitted by brethren_md(39),

Classic sleep apnea in the patient. Cessation of breathing causes nocturnal hypoxia and systemic hypertension/arrhythmic/sudden death can persist. PaO2 is normal during day and decreased during episodes and at night. Classically seen in Obese patients such as the patient in the question stem.

tinydoc  Caused a cessation of breathing rather than a ↓ in lung volume although a patient could develop an obesity related restrictive lung disease thats not whats happening with this question. +