Fasting Required: No
Specimen: Blood
Results: 1-2 Business Days
Description: Cancer antigen (CA) 125 is a protein present in normal ovarian tissue and appears in the blood when protective barriers are destroyed, as occurs in cancer or endometriosis. This test is a tumor marker for monitoring disease progression and reoccurrence in ovarian cancer. CA 125 can also be detected in other cancers such as pancreas, liver, colon, breast, and lung.