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If you are having fun with this article, consider supporting our award-successful journalism by subscribing. By purchasing a subscription you are helping to ensure the way forward for impactful stories about the discoveries and ideas shaping our world in the present day. A patient on the operating table begins bleeding profusely. Medical employees use sponge after sponge to soak up the blood, unsure of exactly how a lot has been misplaced. Should the attending physician order a transfusion? The affected person should still have enough pink blood cells for the rest of the surgery, but a lab take a look at to confirm the rely can take 15 to 45 minutes. Confronted with this situation many physicians go for a transfusion-to the tune of 1.9 million given in the U.S. It's unclear, nonetheless, if all these are essential. Now, a new technology could clear that up and staunch the move. Researchers have developed a noninvasive gadget that takes actual-time measurements of a affected person's red blood cells (particularly, hemoglobin levels), giving physicians continuous information about when a affected person actually needs a transfusion.
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