P wave in ECG is due to :: (A) Ventricular depolarization, (B) Atrial repolarization, (C) Ventricular repolarization, (D) Atrial depolarization
Answer is D. Ans. (d) Atrial depolarizationECG findingSignificanceP waveAtrial DepolarizationQRSVentricular depolarizationT waveVentricular repolarizationU waveDelayed repolarization of papillary musclesPR intervalSpread of impulse from SAN to AVNST segmentIso-electric segment