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Point-of-care whole blood analyzers dedicated to measuring the concentration of glucose in capillary blood. Some units can also use venous and/or arterial blood. Most of these analyzers use reflectance photometry methods (i.e., the amount of light produced by an LED and reflected from a reagent-impregnated test pad that has reacted with the blood sample is measured) or electrochemical methods (i.e., electric current is measured when glucose oxidase converts glucose to gluconic acid on a blood-dampened reagent strip). Some blood glucose analyzers are capable of cholesterol-level determination for screening purposes. These glucose analyzers are used for health professionals and diabetic patients to manage diabetes and to test for transient high or low glucose levels (e.g., during surgery); they are also used in sports medicine.
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