Medical Science · Physiology
What does the QT interval on a normal ECG trace primarily represent?
Verified Solution4 OptionsUpdated: October 2026👁️1 View
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- 1Ventricular mechanical contraction duration only
- 2Atrial depolarization and repolarization
- 3Atrial contraction duration only
- 4Total time for ventricular depolarization and repolarization✓
Correct answer
Total time for ventricular depolarization and repolarization
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