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Medical Term:

PR interval


Definition: in the electrocardiogram, the time elapsing between the beginning of the P wave and the beginning of the next QRS complex; it corresponds to the a-c interval of the venous pulse and is normally 0.12–0.20 sec.

Synonym(s): PQ interval

© Copyright 2016 Wolters Kluwer. All Rights Reserved. Review Date: Sep 19, 2016.