What principle does the pulse oximeter use to measure the oxygen saturation of a capillary bed?
A) Photospectrometry
B) Heated spectrometry
C) Sidestream sampling
D) Blood gas sampling

Question

Quizplus · Accepted Answer

Pulse oximeters monitor the oxygen saturation in the arterial blood.Rather than directly measuring the saturation of the blood as a co-oximeter does (SaO₂),the pulse oximeter uses photospectrometry to measure the oxygen saturation of a capillary bed (SpO₂).

What Principle Does the Pulse Oximeter Use to Measure the Oxygen