Ca 19.9 Serum Biomarker and its reverence
CA 19-9 is a substance found in blood that is often high in people with pancreatic cancer. High levels can be caused by pancreatic cancer or other health problems. A CA 19-9 blood test is used to check how well cancer treatment is working. This test is not used to confirm (diagnose) pancreatic cancer.
Bilirubin is a chemical that gives bile its color. Bile
is uid made by the liver to help digest food. Bile ows out of the liver through small tubes called bile ducts. There may be too much bilirubin in the blood if a tumor is blocking a bile duct. Too much bilirubin causes a yellowing of the eyes and skin—a condition called jaundice. It also increases the level of CA 19-9 in the blood.
If you have jaundice and symptoms of cholangitis or fever, then your doctors will place a stent in the bile duct to unblock it. You will be given antibiotic drugs along with the stent. Your doctor may also place a stent if you are very itchy from jaundice or won’t have surgery within a week. If bilirubin levels return to normal before surgery, a CA 19-9 test can be done.
After completing adjuvant treatment, you will have follow-up tests. Follow-up tests are tests given after treatment to check how well treatment worked. These tests look for signs of cancer return (recurrence) or spread (metastasis) after treatment.
Follow-up tests are recommended every 3 to 6 months for 2 years, and then once every year. A medical history and physical exam can help to nd signs and symptoms of pancreatic cancer early. CA 19-9 is a substance found in blood and high levels can be caused by pancreatic cancer. Thus, a CA 19-9 blood test is recommended as part of follow- up testing. A CT scan is also recommended to look for early signs of cancer recurrence. more