A systematic review draws together five decades of research -- including more than 730,000 individual measurements -- to assess how a person's skin tone can influence the readings provided by some of ...

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.

Pulse oximeters – one of the most common medical devices used in global healthcare – can provide significantly overestimated oxygen saturation readings in people with darker skin tones, according to ...