ECG Interpretation:
Arrhythmias Brief overview of the ECG diagnosis of arrhythmias See also ACC/AHA/ESC Guidelines for the Management of Patients with Atrial Fibrillation 1. P wave = depolarization of the atria. QRS = depolarization of the ventricle. T wave = repolarization of the ventricle. 2. Cardiac muscle cells depolarize with a