Pulse oximetry is a test that is done to measure the oxygen level in the blood, and it helps to determine how well oxygen is sent to different parts of the body. This test is an easy and painless procedure. The normal level of oxygen is 95% or higher. The SpO2 measurement on a pulse oximeter shows the percentage of oxygen present in the blood.
Pulse Oximetry - An Overview
Pulse oximetry is used to measure the oxygen level. This article illustrates the methods and uses of pulse oximetry.