Skip to Content


Pronunciation: ok-sim'e-tre

Definition: Procedure using a device to measure oxygen saturation by fluctations of light absorption in well-vascularized tissue during systole and diastole. The underlying principle is the Beer law, or the relationship between the amount of light absorbed by a solute in solution and the concentration of the unknown solute.

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.