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'T' wave in an ECG represents...

'T' wave in an ECG represents

A

Atrial repolarization

B

Atrial depolarization

C

Ventricular repolarization

D

Ventricular depolarization

Text Solution

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The correct Answer is:
To answer the question regarding what the 'T' wave in an ECG represents, we can follow these steps: ### Step-by-Step Solution: 1. **Understanding ECG**: - An Electrocardiogram (ECG) is a test that records the electrical activity of the heart over a period of time. It is used to detect various heart conditions. 2. **Identifying the Waves in ECG**: - The ECG consists of several waves, each representing different electrical activities of the heart: - **P wave**: Represents atrial depolarization (the electrical activity that causes the atria to contract). - **QRS complex**: Represents ventricular depolarization (the electrical activity that causes the ventricles to contract). - **T wave**: Represents ventricular repolarization (the process of the ventricles recovering after contraction). 3. **Analyzing the Options**: - The question provides four options: - A. Atrial repolarization - B. Atrial depolarization - C. Ventricular repolarization - D. Ventricular depolarization - From our understanding of the ECG waves, we can eliminate options A and B since they refer to atrial activities, which are represented by the P wave. 4. **Identifying the Correct Answer**: - The QRS complex corresponds to ventricular depolarization, which leaves us with option C (ventricular repolarization) as the correct answer for what the T wave represents. 5. **Final Conclusion**: - Therefore, the 'T' wave in an ECG represents **ventricular repolarization**.
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