Overview

P wave


Show Summary Details

Quick Reference

Component of an electrocardiograph that appears as a small positive deflection prior to the QRS complex. At rest, it normally lasts less than 0.12 s and has an amplitude of 0.25 mV or less. It represents atrial depolarization.

Subjects: Sports and Exercise Medicine.


Reference entries

Users without a subscription are not able to see the full content. Please, subscribe or login to access all content.