Which statement correctly describes the T Wave?

Which statement correctly describes the T Wave?

• A. It represents atrial contraction
• B. It represents ventricular depolarization
• C. It represents ventricular recovery or relaxation
• D. It represents AV node conduction delay

Answer: (C)

The T wave reflects ventricular repolarization, which is the ventricles’ electrical recovery after they have contracted. After the QRS complex, the ventricular myocardium returns to its resting potential, enabling the heart to relax electrically. That recovery is what the T wave represents. In contrast, the P wave shows atrial depolarization (atrial activation and contraction), the QRS complex shows ventricular depolarization (ventricular contraction), and the PR interval reflects the delay at the AV node. So describing the T wave as ventricular recovery or relaxation is the best fit.

The T wave reflects ventricular repolarization, which is the ventricles’ electrical recovery after they have contracted. After the QRS complex, the ventricular myocardium returns to its resting potential, enabling the heart to relax electrically. That recovery is what the T wave represents.

In contrast, the P wave shows atrial depolarization (atrial activation and contraction), the QRS complex shows ventricular depolarization (ventricular contraction), and the PR interval reflects the delay at the AV node. So describing the T wave as ventricular recovery or relaxation is the best fit.