Pulse oximetry is a quick and noninvasive test that measures the oxygen saturation level in your blood using a device called a pulse oximeter. It helps monitor how well oxygen is being delivered ...

Pulse oximetry is a quick and noninvasive test that measures the oxygen saturation level in your blood using a device called a pulse oximeter. It helps monitor how well oxygen is being delivered in ...

A pulse oximeter measures your blood oxygen levels and pulse. A low level of oxygen saturation may occur if you have certain health conditions. Your skin tone may also affect your reading.

With decades of experience as a health, wellness, and fitness journalist, Leah Groth has one mission: To help you become the healthiest version of yourself. You may have seen a pulse oximeter ...