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.

OAKLAND, Calif. -- The patient was in his 60s, an African American man with emphysema. The oximeter placed on his fingertip registered well above the 88% blood oxygen saturation level that signals an ...

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.

Scientists have long known that pulse oximeters are less accurate when used for people with dark skin tones – and now, a new report offers some insight into just how much more inaccurate these ...