About PQRST in ECG P wave: ECG deflection representing atrial depolarization. Atrial repolarization occurs during ventricular depolarization and is obscured. QRS wave: ECG deflection representing ventricular depolarization. T wave: ECG defection representing ventricular repolarization ECG P Wave in ECG P wave is the result of depolarisation of left and right atria. It is upright in […]