Federal health officials are proposing changes to make sure medical devices that measure oxygen levels are working for patients of color

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 devices more reliable and less biased.

A Food and Drug Administration (FDA) draft guidance would require manufacturers of pulse oximeters to gather far more clinical data to show the devices accurately work across a range of skin