What part of the EKG waveform does the ST segment represent?

The ST segment of the EKG waveform represents the recovery phase of the ventricles, also known as the early phase of ventricular repolarization. During this phase, the ventricles are transitioning from the state of contraction (systole) to relaxation (diastole). This segment occurs after the QRS complex, which depicts ventricular depolarization, and before the T wave, which illustrates full ventricular repolarization.

The ST segment is crucial in determining the heart's electrical stability and can be clinically significant in identifying conditions such as ischemia or myocardial infarction. Changes in the ST segment, such as elevation or depression, can indicate various cardiac issues that may require medical attention. Understanding the significance of the ST segment allows healthcare professionals to analyze the heart's overall electrical activity effectively.