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R wave

 

Definition: the first positive (upward) deflection of the QRS complex in the electrocardiogram; successive upward deflections within the same QRS complex are labeled R', R'', etc.

Further information

Always consult your healthcare provider to ensure the information displayed on this page applies to your personal circumstances.

© Copyright 2018 Wolters Kluwer. All Rights Reserved. Review date: Sep 19, 2016.

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