Glossary Term:
Pulse Oximeter

A sensor that measures oxygen saturation in the blood. Saturation of peripheral oxygen, or SpO2, is a measure of hemoglobin saturation and can be measured non-invasively, for example, with a clip on the finger or ear. The sensor typically employs a pair of small light-emitting diodes (LEDs) facing a photodiode that measures the amount of light passing through the skin.

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