Ventricular repolarization corresponds to which ECG component?

Ventricular repolarization corresponds to which ECG component?

• A. P wave
• B. QRS complex
• C. T wave
• D. ST segment

Answer: (C)

Ventricular repolarization is the heart’s electrical reset of the ventricles after they have depolarized and contracted. This restoring process shows up on the ECG as the T wave, which follows the QRS complex that represents ventricular depolarization. The P wave reflects atrial depolarization, and the ST segment is the interval when the ventricles are depolarized (isoelectric period during the plateau of the ventricular action potential), not the repolarization itself. So the T wave is the part of the ECG that corresponds to ventricular repolarization.

Ventricular repolarization is the heart’s electrical reset of the ventricles after they have depolarized and contracted. This restoring process shows up on the ECG as the T wave, which follows the QRS complex that represents ventricular depolarization. The P wave reflects atrial depolarization, and the ST segment is the interval when the ventricles are depolarized (isoelectric period during the plateau of the ventricular action potential), not the repolarization itself. So the T wave is the part of the ECG that corresponds to ventricular repolarization.