MEDICAL
HEART AND PERICARDIUM
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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What part of an ECG represents the ventricular repolarization?
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P wave
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QRS complex
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T wave
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None of the above
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Explanation:
Detailed explanation-1: -Normally, the T wave is formed at the end of the last phase of ventricular repolarization. Ventricular repolarization is the process by which the ventricular myocytes return to their negative resting potential so they can depolarize again.
Detailed explanation-2: -The T Wave indicates ventricular repolarization, in which the ventricles relax following depolarization and contraction.
Detailed explanation-3: -The normal T wave is usually in the same direction as the QRS except in the right precordial leads. In the normal ECG the T wave is always upright in leads I, II, V3-6, and always inverted in lead aVR. ST segment depression is often characterized as “upsloping", “horizontal", or “downsloping".
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