Pulse oximeters are a critical healthcare tool that in a time of need can mean the difference between life and death for someone who is sick. At the start of the pandemic, between March and June of 2020, the sale of pulse oximeters for home use [...]
A pulse oximeter is a device that measures your blood oxygen level. Blood oxygen information is crucial to life, and is often used by healthcare providers to provide better care for their patients. Home use is also sometimes warranted for certain individuals.
Dr. Eric Gottlieb, a lecturer at MIT and a physician at Mount Auburn Hospital in Cambridge, Massachusetts who co-authored a study a recent study, when Hewlett Packard developed its pulse oximeter in the 1970s, said the company was aware of issues regarding accurate readings for non-white individuals and “put a lot of effort into trying to solve it, making these devices more equitable.”
This assessment is shared by author Amy Moran-Thomas, an associate professor of anthropology at MIT. Studies over the intervening decades continue to show issues with oximeters and skin tone, but the COVID pandemic brought the issue back into sharp focus. As for solutions and next steps, there is research currently being conducted to improve readings for people with darker skin tones. Rutendo Jakachira, a second-year Ph.D. student at Brown University in the Department of Physics, in partnership with Brown University Professor of Engineering Kimani C. Toussaint, is conducting research to create a non-invasive method of obtaining accurate blood oxygen readings from people with darker skin.
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