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.

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.

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 ...

The primary function of a pulse oximeter is to gather health data and notify you of any unusual readings. A normal blood oxygen saturation rate is around 95% with slight variations.

DEAR DR. ROACH: Occasionally I get irregular heartbeats. Recently, I purchased a pulse oximeter. When this happened, the meter read my heart rate in the 30s for a few seconds. What does this mean ...