Medicine FMGE 2017 d332d684 The PR interval in ECG denotes? A Atrial depolarization only B Atrial depolarization with A - V conduction C Ventricular depolarization and ventricular repolarization D Atrial depolarization with atrial repolarization High-Yield Explanation Atrial depolarization only - P- Wave Ventricular depolarization and ventricular repolarization - QT interval