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Why Get Tested

Primarily to diagnose and monitor acute pancreatitis also sometimes to diagnose and monitor chronic pancreatitis or other pancreatic diseases

When To Get Tested

When you have symptoms of a pancreatic disorder such as severe abdominal pain fever loss of appetite or nausea

Sample Required

A blood sample drawn from a vein in your arm sometimes a random urine sample a 24-hour urine sample or a sample of peritoneal fluid

Test Preparation Needed


Common Questions

The blood amylase test is used to help diagnose and monitor acute pancreatitis It is often ordered along with a lipase test It may also be used to diagnose and monitor chronic pancreatitis and other disorders that may involve the pancreas A urine amylase test may also be ordered Typically its level will mirror blood amylase concentrations but both the rise and fall will occur later Sometimes a urine creatinine clearance may be ordered along with the urine amylase to help evaluate the ratio of amylase to creatinine that is filtered by the kidneys This ratio is used to assess kidney function because improper function can result in a slower rate of amylase clearance In certain cases for example when there is an accumulation of fluid in the abdomen ascites an amylase test may be performed on peritoneal fluid to help make a diagnosis of pancreatitis Amylase tests are sometimes used to monitor treatment of cancers involving the pancreas and after the removal of gallstones that have caused gallbladder attacks

A blood amylase test may be ordered when a person has symptoms of a pancreatic disorder such as Severe abdominal or back pain Fever Loss of appetite Nausea A urine amylase test may be ordered along with or following a blood amylase test One or both may also be ordered periodically when a health practitioner wants to monitor a person to evaluate the effectiveness of treatment and to determine whether amylase levels are increasing or decreasing over time

A high amylase level in the blood may indicate the presence of a condition affecting the pancreas In acute pancreatitis amylase in the blood often increases to 4 to 6 times higher than the highest reference value sometimes called the upper limit of normal The increase occurs within 4 to 8 hours of injury to the pancreas and generally remains elevated until the cause is successfully treated Then the amylase values will return to normal in a few days In chronic pancreatitis amylase levels initially will be moderately elevated but often decrease over time with progressive pancreas damage In this case levels returning to normal may not indicate that the source of damage has been resolved The magnitude of increase in amylase level does not indicate severity of pancreatic disease Amylase levels may also be significantly increased in people with pancreatic duct obstruction and pancreatic cancers In general urine amylase levels rise in proportion to blood amylase levels and will stay elevated for several days after blood levels have returned to normal An increased level of amylase in peritoneal fluid can occur in acute pancreatitis but may also occur in other abdominal disorders such as obstructed intestine or decreased blood flow to the intestines infarct A low amylase level in blood and urine in a person with pancreatitis symptoms may indicate permanent damage to the amylase-producing cells in the pancreas Decreased levels can also be due to kidney disease and toxemia of pregnancy Increased blood amylase levels with normal to low urine amylase levels may indicate the presence of a macroamylase a benign complex of amylase and other proteins that accumulates in the blood

In acute pancreatitis elevated amylase levels usually parallel lipase concentrations although lipase levels will remain elevated longer The lipase test is regarded as more accurate for detecting pancreatitis particularly acute alcoholic pancreatitis but both lipase and amylase tests are commonly ordered together when pancreatitis is suspected Chronic pancreatitis is often associated with alcoholism It may also be caused by trauma or pancreatic duct obstruction or may be seen in association with genetic abnormalities such as cystic fibrosis

No Amylase levels may also be significantly increased in people with gallbladder attacks Urine and blood amylase levels may be moderately elevated with a variety of other conditions such as ovarian cancer lung cancer tubal pregnancy acute appendicitis diabetic ketoacidosis mumps intestinal obstruction or perforated ulcer but amylase tests are not generally used to diagnose or monitor these disorders

Yes Some drugs that may cause amylase to rise include aspirin diuretics oral contraceptives corticosteroids indomethacin ethyl alcohol and opiates such as codeine and morphine

Amylase is an enzyme that has several different forms called isoenzymes Different tissues make different forms P-amylase refers to the type of amylase made mainly in the pancreas S-amylase refers to the type of amylase made mainly by the salivary glands P-amylase in the blood increases when the pancreas is inflamed or damaged S-amylase in the blood increases when the salivary gland is inflamed or damaged Measuring pancreatic amylase or P-amylase may be useful in determining if an increase in a total amylase level is due to acute pancreatitis