• Young otherwise healthy man who experienced loss of conciousness preceded by prodromal symptoms (nausea, sweating, lightheadedness) in a stressful situation and was found to be bradycardic at the time of the loss of consciousness, most consistent with vasovagal syncope
• Key idea: Vasovagal syncope is the most common cause of loss of consciousness, especially among otherwise healthy patients
• Hypoglycemia can also lead to loss of consciousness among otherwise healthy patients, but would not likely be associated with bradycardia or prodrome

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