In an ECG the cardiac event corresponding to the ST segment is:: (A) Atrial depolarisation, (B) Ventricular depolarisation, (C) Atrial repolarisation, (D) Ventricular repolarisation
Answer is D. PR - Interval corresponds with atrial depolarisation and conduction through AV node QRS - corresponds with Ventricular depolarisation + atrial repolarisation QT - corresponds with ventricular depolarisation + ventricular repolarisation Ref: Guyton 12th Ed