amylase-creatinine clearance ratio
Definition: a test for the diagnosis of acute pancreatitis; it is determined by measuring amylase and creatinine in serum and urine; in apparently healthy individuals the renal clearance of amylase is less than 5% that of creatinine; in acute pancreatitis the ratio is said to be more than 5%.
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Examples: glitazone, GI cocktail, etc.