Evaluation of cardiac arrhythmias.
D000328:Adult; D001146:Arrhythmia, Sinus / Q000175:diagnosis; D001145:Arrhythmias, Cardiac / Q000175:diagnosis*; D001919:Bradycardia / Q000175:diagnosis; D002648:Child; D004562:Electrocardiography; D006801:Humans; D009730:Nursing Assessment; D013614:Tachycardia, Paroxysmal / Q000175:diagnosis; D014693:Ventricular Fibrillation / Q000175:diagnosis