PR Interval | Topic Reviews | Learn The Heart - Healio

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BySteven Lome, DO

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Save PR Interval BySteven Lome, DO

The PR interval is the time from the beginning of the P wave (atrial depolarization) to the beginning of the QRS complex (ventricular depolarization).

The normal PR interval measures 0.12-0.20 seconds (120-200 milliseconds). A prolonged or shortened PR interval can indicate certain disease.

When prolonged, a first degree AV block is present. When shortened, Wolff-Parkinson-White syndrome or Lown-Ganong-Levine syndrome should be suspected.

InsertImage: NormalECG1.jpg

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electrocardiogram wolff-parkinson-white syndrome
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Tag » What Does The Pr Interval Mean