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standard limb lead


Definition: one of the three original bipolar limb leads of the clinical electrocardiogram, designated I, II, and III: lead I records the potential difference between the right and left arms; lead II the difference between right arm and the leg electrode; and lead III the difference between left arm and the leg electrode.

Synonym(s): indirect lead

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