Snapshot A 65-year-old man presents to the emergency department after his wife saw him collapse onto the ground. He stood up from bed to make his way to the restroom. When he stood up, his wife saw him briefly stop walking, turn pale, and fall to the ground. After 10 seconds, he regained consciousness and said he felt lightheaded and his vision became blurry prior to passing out. Medical history is significant for hypertension and newly diagnosed benign prostatic hyperplasia. He is taking hydrochlorothiazide and terazosin. Physical examination is unremarkable. A 12-lead electrocardiogram does not demonstrate any cardiac arrhythmias or structural changes. Introduction Definition login to view 7 more bullets Etiology Reflex syncope (neurally-mediated reflex syncope) login to view 12 more bullets Orthostatic syncope login to view 3 more bullets Cardiac syncope login to view 2 more bullets Neurogenic syncope login to view 1 more bullet Presentation Symptoms login to view 4 more bullets Physical exam login to view 2 more bullets Studies Electrocardiogram login to view 11 more bullets Echocardiography login to view 2 more bullets Telemetry login to view 1 more bullet Differential Seizure login to view 3 more bullets Treatment Treatment is guided towards the underlying cause of syncope login to view 4 more bullets Complications Fractures