Which section of the EKG represents the electrical recovery of the ventricles?

Which section of the EKG represents the electrical recovery of the ventricles?

• A. P wave
• B. QRS complex
• C. T wave
• D. ST segment

Answer: (C)

The T wave of the EKG is specifically associated with the electrical recovery of the ventricles, known as repolarization. During this phase, the cardiac muscle cells reset their electrical state following the contraction represented by the QRS complex. The T wave signifies that the ventricles are returning to their resting state after having contracted and pumped blood throughout the body.

Understanding the EKG mechanics is crucial for interpreting cardiac activity. The P wave indicates atrial depolarization, which occurs before ventricular contraction. The QRS complex signifies the depolarization of the ventricles, leading to their contraction. The ST segment is a flat section of the EKG tracing that occurs between the end of the QRS complex and the beginning of the T wave, representing the time during which the ventricles are in a plateau phase of contraction. However, it is the T wave that specifically describes the period when the ventricles are electrically recovering.