Cancer / Screening
Also known as: CA-125, Cancer Antigen 125
No common urgent flag from this test alone
This test checks how much CA-125 protein is in your blood. CA-125 is a special protein that can be a sign of certain health issues.
Doctors often order this test to check how well ovarian cancer treatment is working. It also helps them see if the cancer has come back. Sometimes, this test is used to learn more about a lump in the pelvic area.
Reference ranges for CA-125 can vary significantly between different laboratories. Your doctor will interpret your results based on the specific reference range used by the lab that performed your test.
Clinical Reference
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Educational purposes only — This information is not a substitute for professional medical advice, diagnosis, or treatment. Always discuss your lab results with your healthcare provider.