Add Yahoo as a preferred source to see more of our stories on Google. The doctors and nurses didn’t believe Tomisa Starr was having trouble breathing. Two years ago, Starr, 61, of Sacramento, ...

Devices that measure oxygen levels in the blood don’t work as well in people with dark skin. Researchers want to change that. This article first appeared in The Checkup, MIT Technology Review's weekly ...

Dr. Takuo Aoyagi, a Japanese bioengineer, was the first to invent pulse oximetry in 1974. 2 The pulse oximeter is based on the light absorption characteristics of hemoglobin at different wavelengths.

The longstanding problem of pulse oximeters providing less-accurate readings for people with dark skin tones got another look Friday from a panel of experts for the US Food and Drug Administration.

Years of research have showed that pulse oximeters yield less accurate readings for people with darker skin tones, and now the US Food and Drug Administration is proposing guidance to help make these ...

The doctors and nurses didn’t believe Tomisa Starr was having trouble breathing. Subscribe to read this story ad-free Get unlimited access to ad-free articles and exclusive content. Two years ago, ...