The T wave on an electrocardiogram represents which of the following?

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Prepare for the AACN Essentials of Critical Care Nursing Test. Study with multiple choice questions and thorough explanations. Ace your test effortlessly!

Multiple Choice

The T wave on an electrocardiogram represents which of the following?

Explanation:
The T wave represents ventricular repolarization, which is the ventricles resetting their electrical state after contracting. This phase allows the heart muscle to be ready for the next beat. The P wave corresponds to atrial depolarization, and the QRS complex reflects ventricular depolarization. Atrial repolarization occurs during the QRS but is masked by the much larger ventricular depolarization and doesn’t appear as a separate wave.

The T wave represents ventricular repolarization, which is the ventricles resetting their electrical state after contracting. This phase allows the heart muscle to be ready for the next beat. The P wave corresponds to atrial depolarization, and the QRS complex reflects ventricular depolarization. Atrial repolarization occurs during the QRS but is masked by the much larger ventricular depolarization and doesn’t appear as a separate wave.

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