CA 125 blood test
CA 125 blood test measures the level of blood antigens that are considered tumor markers. Typically the CA 125 blood test is used monitor the progress of ovarian cancer. But the CA 125 blood test is not considered a very accurate diagnostic tool. This test is used in combination with trans vaginal ultrasound and pelvic examination. CA 125 blood tests often return false positive results. Besides hardly about 50% of women with ovarian cancer have elevated levels of CA 125. CA 125 levels can be elevated due to menstruation, endometriosis, fibroids and pregnancy. The newer CA 125 blood test is said to be more accurate. This test is called CA 125 - II. Readings of above 35 U/ml are considered abnormal. CA 125 blood test is used to check the effect of treatment on women suffering from ovarian cancer. It is not used to check otherwise healthy women for ovarian cancer.
Bibliography / Reference
Collection of Pages - Last revised Date: January 20, 2019