Cancer Antigen 15-3
Cancer antigen (CA) 15-3 is a protein produced by normal and cancerous cells. It is typically used to monitor breast cancer progression and reoccurrence.
CA 15-3 can also be elevated in some non-cancerous conditions such as liver disease, sarcoidosis, and lupus as well as other forms of cancer.
Fasting is not required for this test. Take all medications as prescribed.
Cancer antigen 15-3 assay value is not intended to be used as a screening test. It should be used in conjunction with information from a clinical evaluation and diagnostic procedure.
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