A pulse oximeter is a device that clips on your finger, toe, or earlobe to measure blood oxygen saturation. Here's how it works and how to read it.

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.

And these are used by the pulse oximeter to determine the oxygen saturation. According to the World Health Organization (WHO), oxygen saturation (SpO2) should be between 95% and 100%.

Before the coronavirus pandemic, most Americans had heard about pulse oximeters only via TV shows where EMTs shout out a patient’s “pulse ox” — or measure of oxygen in the blood. But when ...

Your pulse oximeter will give you a numerical reading — a percentage that indicates the level of oxygen saturation in your blood. If you’ve been to a doctor in the past 20 years, you’ve ...

Coronavirus Coronavirus: Why you may want to buy a pulse oximeter Updated: Jun. 27, 2023, 11:38 a.m. | Published: Mar. 31, 2020, 7:48 a.m.

The devices are one of several tools used by doctors to manage patients. A U.S. Food and Drug Administration panel suggested on Tuesday that pulse oximeters should be improved because they may not ...