Turn on the pulse oximeter and place it on your fingertip, ideally the middle or index finger. Sit still and avoid moving while the device reads your oxygen levels and heart rate.

Image: S hutterstock Pulse oximetry is a non-invasive and painless test that measures a person’s oxygen saturation level. It can rapidly detect even the small changes in how efficiently oxygen is ...

Fingertip Pulse Oximeter – Quick Intro! A Fingertip pulse oximeter is a portable electronic device that has become common everyday medical equipment. After a few seconds of being applied to a finger, ...

Months later, pulse oximeters are easier to procure -- they're in stock at some stores, and there are still some decent deals to be found. Whether or not you actually need one is a different story.

Pulse oximeters with a history function save data, so you don’t have to jot down your results each time. This is a useful feature to have if you are supposed to be recording results for your doctor.

A pulse oximeter provides a quick read on the saturation of oxygen in your blood. Some doctors believe it is a helpful device to have at home during the coronavirus pandemic. Others aren't so sure.

To use a pulse oximeter, press the device open as you would press a clip or clothespin, and place your finger snugly inside. The device beams different wavelengths of light through your finger.