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Clinical chemistry reagents intended to perform qualitative and/or quantitative chemical analyses of body fluids (typically serum) to determine the level of the enzyme gamma glutamyltransferase (GGT). GGT in serum typically increases in all liver diseases; it is more sensitive and its levels elevate earlier than those of other enzymes in cases of obstructive jaundice, cholangitis, and cholecystitis; the level of GGT is highest in biliary obstructions.
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