Countershock exposed quinidine syncope.
D000368:Aged; D001145:Arrhythmias, Cardiac / Q000150:complications* / Q000628:therapy*; D004342:Drug Hypersensitivity; D004554:Electric Countershock / Q000009:adverse effects*; D004562:Electrocardiography; D006801:Humans; D008875:Middle Aged; D011802:Quinidine / Q000009:adverse effects*; D013575:Syncope / Q000209:etiology*
D011802:Quinidine