Ca 125 Test
This immunoassay is intended for the in vitro quantitative determination of OC 125 reactive determinants in human serum and plasma.1 The Elecsys CA 125 II assay is indicated for use as an aid in the detection of residual or recurrent ovarian carcinoma in patients who have undergone first-line therapy and would be considered for second-look procedures.1 The Elecsys CA 125 II assay is further indicated for serial measurement of CA 125 to aid in the management of cancer patients.1 CA 125 belongs to the family of hybridoma-defined tumor markers. The values measured are defined by the use of the monoclonal antibody (MAb) OC 125. The antigenic determinant CA 125 is located on a high-molecular weight glycoprotein (200-1000 kd) isolated from cell culture or serum. The antigenic determination CA 125 has a protein structure with associated carbohydrate side-chains.2,3 These determinants are associated with a high-molecular weight glycoprotein in serum and plasma of women with primary epithelial invasive ovarian cancer (excluding those with cancer of low malignant potential).