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Pulse oximeters, which measure the extent of oxygen in your blood, don’t always work correctly on people with darker skin. One research discovered that Black patients with critically low oxygen levels have been 3 times extra likely to have their degree overestimated, which might lead to dangerous delays in care. A more recent examine revealed that inaccurate blood-oxygen readouts from Hispanic and Black patients caused them to be about 25 percent less more likely to be acknowledged as eligible for COVID-19 remedy. It doesn’t need to be this way. At Brown University, Rutendo Jakachira, a PhD candidate in physics, and Kimani Toussaint, a professor of engineering, are attempting to take racial bias out of oxygen readings by constructing a better pulse oximeter. The normal pulse oximeter is a small clip that attaches to your finger. One facet of the clip shoots two wavelengths of gentle - pink and infrared - into the finger whereas the other facet registers how much light was absorbed inside.
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發表於 2025-8-10 12:23:35