Pulse oximetry is a noninvasive, painless test that measures the oxygen saturation level of your blood. Here’s how it works ...

Black people in the hospital are 31.9% more likely than White patients to have pulse oximeter readings that overestimate their oxygen levels by at least 4 percentage points, according to data ...

Many children with medical conditions, especially respiratory conditions such as asthma, use a consumer-grade pulse oximeter at home.

The number of people waiting more than 52 weeks to start routine hospital treatment has fallen to its lowest level since December 2020.