Which EKG wave represents ventricular repolarization and relaxation?

The T wave of an electrocardiogram (EKG) is specifically associated with the process of ventricular repolarization and relaxation. During this phase, the ventricles, which are the heart's pumping chambers, return to their resting state after contraction. This is a crucial aspect of the cardiac cycle, as it prepares the ventricles for the next contraction.

The T wave reflects the electrical changes in the heart that occur as the cells within the ventricles re-establish their resting membrane potential following depolarization, which is depicted by the QRS complex. The timing of the T wave is essential in assessing the heart's recovery period and ensuring efficient cardiac function. An abnormal T wave can indicate issues such as electrolyte imbalances or cardiac ischemia.

By understanding the significance of the T wave, medical assistants can better interpret EKG results, recognize potential abnormalities, and contribute effectively to patient care.