In a normal ECG,a duration of 0.16 seconds is | vedclass

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(A) In a standard $ECG$ tracing,the $P-R$ interval represents the time taken for the electrical impulse to travel from the $SA$ node through the atria

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$P-R$ interval

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(A) In a standard $ECG$ tracing,the $P-R$ interval represents the time taken for the electrical impulse to travel from the $SA$ node through the atria and the $AV$ node to the ventricles.This interval typically ranges from $0.12$ to $0.20$ seconds.Therefore,a duration of $0.16$ seconds falls within the normal range for the $P-R$ interval.

In a normal $ECG$,a duration of $0.16$ seconds is called:

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