A 52-year-old woman loses consciousness when her neck is palpated during a routine health maintenance examination. She has a long-standing history of hypertension managed with diuretic therapy. Which of the following best explains her syncope?
Hypovolemia
Increased afferent vagal nerve firing
Peripheral arteriolar vasodilation
Sinus bradyarrhythmia
Vasovagal syncope
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Cut-to-the-chase Answer (0:38):
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HY USMLE Answer (4:24):
