what is arrhythmia ecg
An electrocardiogram (ECG or. EKG) is often used to diagnose arrhythmias. It creates. a graphic record of the heartâs electrical impulses. Using a Holter monitor, exercise stress tests, tilt table. test and electrophysiologic studies (âmappingâ the. electrical system of your heart) are other ways to find. where arrhythmias start.