Trypsinogen test
Serum trypsin; Trypsin-like immunoreactivity; Serum trypsinogen; Immunoreactive trypsinTrypsinogen is a substance that is normally produced in the pancreas and released into the small intestine. Trypsinogen is converted to trypsin. Then it starts the process needed to break down proteins into their building blocks (called amino acids).
A test can be done to measure the amount of trypsinogen in your blood.
How the Test is Performed
A blood sample is taken from a vein. The blood sample is sent to a lab for testing.
Blood sample is taken from a vein
Venipuncture is the collection of blood from a vein. It is most often done for laboratory testing.
How to Prepare for the Test
There are no special preparations. You may be asked to not eat or drink for 8 hours before the test.
How the Test will Feel
You may feel slight pain or a sting when the needle is inserted to draw blood. Afterward, there may be some throbbing.
Why the Test is Performed
This test is done to detect diseases of the pancreas.
The test is also used to screen newborn babies for cystic fibrosis.
Cystic fibrosis
Cystic fibrosis is a disease that causes thick, sticky mucus to build up in the lungs, digestive tract, and other areas of the body. It is one of th...
Normal Results
Normal value ranges may vary slightly among different laboratories. Talk to your health care provider about the meaning of your specific test results.
What Abnormal Results Mean
Increased levels of trypsinogen may be due to:
- Abnormal production of pancreatic enzymes
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Acute pancreatitis
Acute pancreatitis
Acute pancreatitis is sudden swelling and inflammation of the pancreas.
ImageRead Article Now Book Mark Article - Cystic fibrosis
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Pancreatic cancer
Pancreatic cancer
Pancreatic cancer is cancer that starts in the pancreas.
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Very low levels may be seen in people with chronic pancreatitis.
Chronic pancreatitis
Pancreatitis is swelling of the pancreas. Chronic pancreatitis is present when this problem does not heal or recurs and does not improve, gets worse...
Risks
There is little risk involved with having your blood taken. Veins and arteries vary in size from one person to another and from one side of the body to the other. Taking blood from some people may be more difficult than from others.
Other risks associated with having blood drawn are slight, but may include:
- Fainting or feeling lightheaded
- Multiple punctures to locate veins
- Hematoma (blood buildup under the skin)
- Excessive bleeding
- Infection (a slight risk any time the skin is broken)
Considerations
Other tests used to detect pancreas diseases may include:
- Serum amylase
- Serum lipase
References
Chernecky CC, Berger BJ. Trypsin- plasma or serum. In: Chernecky CC, Berger BJ, eds. Laboratory Tests and Diagnostic Procedures. 6th ed. St Louis, MO: Elsevier Saunders; 2013:1125-1126.
Forsmark CE. Chronic pancreatitis. In: Feldman M, Friedman LS, Brandt LJ, eds. Sleisenger and Fordtran's Gastrointestinal and Liver Disease. 11th ed. Philadelphia, PA: Elsevier; 2021:chap 59.
Siddiqi HA, Rabinowitz S, Axiotis CA. Laboratory diagnosis of gastrointestinal and pancreatic disorders. In: McPherson RA, Pincus MR, eds. Henry's Clinical Diagnosis and Management by Laboratory Methods. 24th ed. Philadelphia, PA: Elsevier; 2022:chap 23.
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Blood test - illustration
Blood is drawn from a vein (venipuncture), usually from the inside of the elbow or the back of the hand. A needle is inserted into the vein, and the blood is collected in an air-tight vial or a syringe. Preparation may vary depending on the specific test.
Blood test
illustration
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Blood test - illustration
Blood is drawn from a vein (venipuncture), usually from the inside of the elbow or the back of the hand. A needle is inserted into the vein, and the blood is collected in an air-tight vial or a syringe. Preparation may vary depending on the specific test.
Blood test
illustration
Review Date: 1/30/2023
Reviewed By: Michael M. Phillips, MD, Emeritus Professor of Medicine, The George Washington University School of Medicine, Washington, DC. Also reviewed by David C. Dugdale, MD, Medical Director, Brenda Conaway, Editorial Director, and the A.D.A.M. Editorial team.
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