Pulse oximetry: A non-invasive method of estimating the oxygen saturation of the arterial red blood cells.
Pulse oximetry: oximetry performed noninvasively, usually on the finger or ear lobe, in which the small increase in absorption of light during the systolic pulse is used to calculate oxygen saturation.
Source: Stedman's Medical Spellchecker, © 2006 Lippincott Williams & Wilkins. All rights reserved.
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