Serum Amylase (AMS)

The amylase in serum belongs to the glycosidic chain hydrolase, mainly derived from the pancreas, etc., and the proximal duodenum, lung, uterus, lactating breast and other organs are also secreted in small amounts. Amylase plays an important role in the digestion of polysaccharide compounds in food. Serum amylase activity assay is mainly used for the diagnosis of acute pancreatitis. Basic Information Specialist classification: Digestive examination classification: biochemical examination Applicable gender: whether men and women apply fasting: fasting Tips: The blood test results have little to do with eating, and there is no need to fasting blood. Normal value 1, enzyme rate method (37 ° C) Serum 20 ~ 90U / L. 2, iodine color Serum 800 ~ 1800U / L. 3, BMD method Adult: 25~125U/L. Adult > 70 years old: 28 ~ 119U / L. (Note the specific reference value depends on each laboratory.) Clinical significance 1, high amylase Pancreatic amylase increase is seen in (1) Pancreatic diseases. Acute pancreatitis, acute exacerbation of chronic pancreatitis, pancreatic cysts, pancreatic cancer, gastroduodenal and other diseases. (2) drugs. Pancreatic hormone, intestinal pancreatic peptide, cholecystokinin, drug-induced pancreatitis, thiazides, steroids, and the like. (3) Pancreatic juice leaks from the digestive tract, absorption, perforation of the digestive tract, intestinal necrosis, peritonitis, penetrating ulcers, etc. (4) Pancreaticobiliary examination such as pancreatic juice countercurrent ERCP (endoscopic pancreaticobiliary angiography). (5) Increased salivary gland amylase is found in salivary gland diseases, tumor producing amylase, postoperative, shock, burns, and the like. (6) Both amylase increases are seen in chronic renal insufficiency. (7) The cause of giant amylase is unknown, which can be seen after the static point of hydroxyethyl starch. 2, low amylase (1) Pancreatic amylase reduction is seen in the pancreas caused by pancreatic diseases (pancreatic resection, pancreatic ablation, acute fulminant pancreatitis), severe diabetes, severe liver disease. (2) Salivary gland amylase reduction is seen in salivary gland resection, after irradiation. High results may be diseases: acute hemorrhagic necrotic pancreatitis, acute pancreatitis, pancreatic cyst, stomach, duodenal ulcer, acute perforation precautions 1. The use of oral contraceptives, codeine, morphine, anesthetics, sulfonamides and saliva contamination specimens will result in low specimen determination results. 2, blood test results and eating relationship is not big, blood does not need to be fasting. Inspection process Take an appropriate amount of blood and immediately send it for inspection. Not suitable for the crowd Taboo population: no indication of indications. Adverse reactions and risks This test generally does not cause complications and harm.

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