Normal values are as follows, depending on what method of detection.

1, enzyme rate method (37 ℃): serum: 20 ~ 90U / L;

2, iodine colorimetry: serum: 800 ~ 1800U / L;

3, BMD method: adults: 25 ~ 125U / L; adults > 70 years old: 28 ~ 119U / L.

Blood amylase, serum amylase (AMS). It is the main subtype of amylase in serum, belonging to glycosidic chain hydrolase, mainly originating from the pancreas and so on, in addition to the proximal duodenum, lungs, uterus, mammary glands in lactation and other organs also have a small amount of secretion. Amylase plays an important role in the digestion of polysaccharide compounds in food. Serum amylase activity measurement is mainly used in the diagnosis of acute pancreatitis.

Expanded information

Hyperamylasemia:

1. Pancreatic-type amylase increase:

(1), Pancreatic disorders: acute pancreatitis, acute exacerbation of chronic pancreatitis, pancreatic cysts, pancreatic cancer, and gastroduodenal diseases.

(2), Drugs: pancreatic stimulating hormone, intestinal pancreatic peptide, cholecystokinin, drug pancreatitis, thiazides, steroids, etc.

(3), pancreatic fluid leakage from the digestive tract, absorption, gastrointestinal tract perforation, intestinal tube necrosis, peritonitis, perforated ulcers.

(4), reverse flow of pancreatic fluid: ERCP (endoscopic cholangiopancreatography) and other pancreaticobiliary examinations, etc.

2, salivary gland type amylase increase: salivary gland disease, tumor producing amylase, postoperative, ? shock, burns, etc.

3, both amylase increased: chronic renal insufficiency.

4, Macroamylasemia: unknown cause, after hydroxyethyl starch static.

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