Task force 2: training in electrocardiography, ambulatory electrocardiography, and exercise testing.

Electrocardiography is the most commonly used diagnostic test in cardiology. Properly interpreted, it contributes significantly to the diagnosis and management of patients with cardiac disorders. Importantly, it is essential to the diagnosis of cardiac arrhythmias and the acute myocardial ischemic syndromes. These 2 conditions account for the majority of cardiac catastrophes. It is appropriately used as a screening test in many circumstances.