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What is this test?

The Peritoneal Fluid Amylase test measures the amount of amylase enzyme in the peritoneal fluid—the clear fluid that fills the space between the abdominal lining and the organs. Amylase is primarily produced by the pancreas and helps break down carbohydrates in food. When the pancreas is damaged or diseased, amylase can leak into the abdominal cavity.

Why is this test performed?

Your doctor may order this test if you have symptoms of abdominal problems, such as severe abdominal pain, bloating, or fever. It helps determine if there is pancreatic involvement in your condition. The test is commonly used to diagnose acute pancreatitis, pancreatic necrosis, or pancreatic fistulas (abnormal connections). It may also help identify causes of ascites (fluid buildup in the abdomen) when other conditions are suspected.

How is the sample collected?

The peritoneal fluid sample is collected through a procedure called paracentesis. During this procedure, the doctor cleans the abdominal area and inserts a thin needle to withdraw fluid from the peritoneal cavity. The procedure is usually done with local anesthesia to minimize discomfort. The collected fluid is then sent to a laboratory for analysis.

What do the results mean?

Results are interpreted by comparing the amylase level in the peritoneal fluid with the amylase level in your blood. If the peritoneal fluid amylase is significantly higher than blood amylase levels, it typically indicates that the pancreas is damaged or leaking. Your doctor will consider your symptoms, medical history, and other test results to make an accurate diagnosis.