A pulse oximeter is a small, portable medical device used to measure the oxygen saturation level in a person's blood. It works by sending two …
A pulse oximeter is a small, portable medical device used to measure the oxygen saturation level in a person’s blood. It works by sending two wavelengths of light, typically red and infrared, through the person’s fingertip or earlobe. The device then calculates the oxygen saturation level by measuring how much light is absorbed by the oxygenated and deoxygenated hemoglobin in the blood. This measurement is often expressed as a percentage, with normal levels typically ranging from 95-100%. Pulse oximeters are commonly used in medical settings and are also available for personal use at home.
