App measures anemia with light, makes blood checks safer

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Designed to help rural and remote communities, the HemaApp - created by researchers from the University of Washington’s Computer Science and Engineering department - checks users’ levels of hemoglobin without needing to draw blood. Hemoglobin carries oxygen throughout the body, and different amounts of it in the blood indicate different conditions, including childhood malnutrition and anemia. Users place their finger over the phone camera, and then the app checks the intensity of the color of the blood. HemaApp’s results were correct 62 percent of the time when using only the phone’s camera and improved to more than 80 percent accurate…

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