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What is the ca-125 test for ovarian cancer?

5 doctors weighed in
Dr. David Fein
Preventive Medicine
4 doctors agree

In brief: Measures a protein

The ca-125 test is a blood test that detects a protein in the blood that is produced by malignant ovarian cells.
It is used to help determine if an ovarian cancer patient has had a relapse, or to help differentiate a cyst found by sonogram or ct. The most important point: it should never be used as a yearly screening test, and should not be requested by patients as a screening test.

In brief: Measures a protein

The ca-125 test is a blood test that detects a protein in the blood that is produced by malignant ovarian cells.
It is used to help determine if an ovarian cancer patient has had a relapse, or to help differentiate a cyst found by sonogram or ct. The most important point: it should never be used as a yearly screening test, and should not be requested by patients as a screening test.
Dr. David Fein
Dr. David Fein
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