CA 19-9 Blood Test (Pancreatic Cancer)

What Is A CA 19-9 Blood Test?This test monitors the amount of protein in the blood called CA 19-9 (cancer antigen 19-9). CA 19-9 is a kind of tumor marker. Tumor markers are chemicals that cancer cells or normal cells make when they find cancer in the body. Small amounts of CA 19-9 can be…