CA 125 blood test is performed to check the levels of antigen in the blood. CA 125 is used as a tumor marker—an indicator of some types of cancer, especially ovarian cancer. CA 125 is a substance produced by the fallopian tubes, the endometrium, and the lining of the abdominal cavity (peritoneum). The amount of CA-125 in a woman's blood and body fluids often increases when cancer of the ovaries is present. However, it is important to know that:
•CA 125 blood test also helps in identifying other conditions that can cause increased levels of CA-125, including pregnancy, menstruation, some non-ovarian cancers, and some noncancerous disorders.
•CA-125 levels do not rise above the normal range in all women who have ovarian cancer.
•CA-125 levels often do not rise until the cancer is in an advanced stage.
CA-125 is a cancer tumor marker that is useful as a marker for ovarian cancer, but may be elevated in other cancers as well. It is not able to distinguish between benign and malignant ovarian tumors, and is best used with other cancer tumor markers. Therefore, the CA125 test is often not considered a screening test for ovarian cancer. However, some Physicians believe it may be useful to establish a baseline CA 125 value. CA-125 is most useful in monitoring progression or recurrence in cases of known ovarian cancer.
The CA 125 blood test, as with all laboratory testing, is in no way intended to replace a visit to your doctor.
Call LabSafe toll free at 1-888-333-LABS to speak with a Medical Counselor for further information on CA 125 blood test, or you may order online and a member of our Medical Staff will contact you.
