Question

what does lengthning of p wave indicate​

Answer 1

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Answer:

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The P wave is the first wave of the cardiac cycle. Represents the depolarization of the atria.

Explanation:

It is composed of the superposition of the electrical activity of both atria.

The normal duration of the P wave is less than 0,10 s (2,5 mm wide) and a maximum amplitude of 0,25 mV (2,5 mm high).

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