Quinidine prior to direct current countershock--a medical hazard.
D001145:Arrhythmias, Cardiac / Q000139:chemically induced*; D004071:Digitalis Glycosides / Q000009:adverse effects; D004554:Electric Countershock / Q000009:adverse effects*; D006801:Humans; D011802:Quinidine / Q000009:adverse effects*
D004071:Digitalis Glycosides; D011802:Quinidine