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Cancer antigen 125

About This Test

Department: Biochemistry


  • Gel/clotted (yellow/red top)

Add-on requests are accepted


Turnaround Time:

72 hours


Tumour marker used in monitoring ovarian cancer and in determination of risk of malignancy index of ovarian carcinoma

Symptomatic women with CA125 > 35 kU/L should be referred for pelvic ultrasound (NICE CG122).

CA125 may be raised in benign conditions including pregnancy, endometriosis, menstruation, ascites, pancreatitis, cirrhosis, pelvic inflammatory disease, as well as any advanced adenocarcinoma.

Reference ranges:

Age range Reference ranges (U/mL)
All ages/sexes 0 - 35


Other Comments:

For more information, please see the following: CA125 - Lab Tests Online