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CA-125

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Also known as: CA 125 Tumor Marker
Formal name: Cancer Antigen 125
Related tests: Tumor Markers, BRCA-1 and BRCA-2, HE4 (Human Epididymis Protein)

At a Glance

Why Get Tested?

To monitor treatment for ovarian cancer or to detect recurrence; sometimes to evaluate a pelvic mass; not recommended for screening asymptomatic women but sometimes ordered to help detect early ovarian cancer in those identified as being at high risk

When to Get Tested?

Before starting therapy for ovarian cancer and at intervals during and after treatment; sometimes when you have a pelvic mass or are at a high risk for developing ovarian cancer

Sample Required?

A blood sample drawn from a vein in your arm

Test Preparation Needed?

None