Thumping the precordium.
D000368:Aged; D001281:Atrial Fibrillation / Q000628:therapy; D001991:Bronchitis / Q000150:complications; D004562:Electrocardiography; D005260:Female; D006323:Heart Arrest / Q000628:therapy*; D006336:Heart Massage; D006801:Humans; D011342:Procainamide / Q000627:therapeutic use; D012151:Resuscitation; D013610:Tachycardia
D011342:Procainamide