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Shop Pulse Oximeters for Blood Oxygen Saturation and read reviews at Walgreens. Pickup & Same Day Delivery available on most store items.
Horovitz said there can also be a psychological downside to using a pulse oximeter: "Obsessive checking—as patients do with temperature." Hoarding is another issue, he said, with folks who don't need such monitoring buying up pulse oximeters. Many factors can lower the accuracy of a standard...