What does the T wave on an EKG represent?

The T wave on an EKG represents the relaxation of the ventricles, more specifically, it indicates ventricular repolarization. During this phase, the ventricles recover and prepare for the next contraction. The process involves the flow of ions across the cardiac cell membranes, which leads to the restoration of the resting membrane potential.

Understanding the T wave's significance is crucial for interpreting EKGs accurately. It signifies a critical phase in the cardiac cycle and can provide insights into the heart's electrical activity and overall health. Abnormalities in the T wave may indicate issues such as ischemia or electrolyte imbalances, which makes recognizing its normal form important for health professionals.