Question

The T wave represents ---- ----. The PR interval, measured from the beginning of the P wave to the beginning of the QRS, corresponds to ---- ---- and impulse delay in the (AV) node. The QT interval, measured from the beginning of the QRS complex to the end of the T wave, represents the time from initial depolarization of the ventricles to the end of ventricular repolarization.

Answer 1

The T wave in an ECG represents the repolarization of the ventricles, the PR interval indicates atrial depolarization and AV node delay, and the QT interval signifies the period from the start of ventricular depolarization to the end of repolarization.

Step-by-step explanation:

The T wave represents the repolarization of the ventricles. The PR interval, measured from the beginning of the P wave to the beginning of the QRS, corresponds to atrial depolarization and impulse delay in the AV node. The QT interval, measured from the beginning of the QRS complex to the end of the T wave, represents the time from initial depolarization of the ventricles to the end of ventricular repolarization.