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The T-wave in an ECG represents

1. Electrical excitation of atria
2. Return of the ventricles from excited state
3. Depolarisation of ventricles
4. Beginning of systole

Correct answer: Return of the ventricles from excited state

Solution

The T-wave corresponds to ventricular repolarization, meaning the ventricles are returning from the excited state to their resting state. This is why the correct choice is the option describing ventricular recovery.

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