CA 19-9 Blood Test (Pancreatic Cancer)

Overview: What is a CA 19-9 Blood Test

A CA 19-9 blood test is a type of tumor marker test used to detect pancreatic cancer. It is a protein found in the blood and is produced by cancer cells in the pancreas. Elevated levels of CA 19-9 are often indicative of pancreatic cancer, but can also be caused by other types of cancer or benign conditions.

What is the Preparation for a CA 19-9 Blood Test?

No special preparation is needed for a CA 19-9 blood test. The patient should fast for 12 hours before the blood test, but do not drink any alcohol for 24 hours before the test.

What is the Procedure for a CA 19-9 Blood Test?

The procedure for a CA 19-9 blood test is a simple one. A healthcare provider will draw a sample of blood from the patient’s arm or hand. The sample is then sent to a laboratory for testing. The results of the test are usually available within a few days.

Types of CA 19-9 Blood Tests

There are three types of CA 19-9 blood tests:

• Quantitative CA 19-9: this measures the amount of CA 19-9 in the blood
• Semiquantitative CA 19-9: this measures the rate at which the CA 19-9 is increasing
• Immunologic CA 19-9: this measures the amount of CA 19-9 antibodies in the blood

Risks Associated with a CA 19-9 Blood Test

The risks associated with a CA 19-9 blood test are minimal. The most common risks are associated with the blood draw, such as pain and bruising. In rare cases, the blood may become infected or clot at the injection site.

Why Should a CA 19-9 Blood Test Be Done?

A CA 19-9 blood test is recommended for individuals with a family history of pancreatic cancer, as well as for those who are displaying symptoms such as abdominal pain, jaundice, weight loss, loss of appetite, and dark urine. The CA 19-9 test is used to monitor treatment of those with pancreatic cancer, determine if cancer has spread, and help predict the prognosis.

When Should a CA 19-9 Blood Test Be Done?

The CA 19-9 blood test should be done annually for individuals with a family history of pancreatic cancer, and more frequently if they display any symptoms of pancreatic cancer. Patients who are already being treated for pancreatic cancer should have the CA 19-9 test done every few months to monitor the cancer’s progression and response to treatment.