CA 19.9

The CA 19-9 test measures the level of cancer antigen 19-9 in the blood, which is a protein produced by certain types of cancer cells, particularly pancreatic cancer cells. This test is used to diagnose and monitor pancreatic cancer, assess the effectiveness of treatment, and detect recurrences. Elevated CA 19-9 levels can indicate the presence of pancreatic cancer or other conditions, such as gallstones, liver disease, and pancreatitis. The CA 19-9 test is essential for guiding treatment decisions, evaluating therapy outcomes, and monitoring for cancer recurrence in patients with pancreatic cancer.