What does the P wave of an ECG indicate?
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Atrial and ventricular depolarization and repolarization are represented on the ECG as a series of waves: the P wave followed by the QRS complex and the T wave. The first deflection is the P wave associated with right and left atrial depolarization. Wave of atrial repolarization is invisible because of low amplitude.
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Answer:depolarisation of atria.
Explanation:
It means contraction of both the atria
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