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Test Updated:
Cancer Antigen 19-9
Carbohydrate Antigen 19-9
CA19-9
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Test Overview
Chemiluminescent Immunoassay
Potentially useful adjunct for diagnosis and monitoring pancreatic cancer; Maybe used for differentiating patients with cholangiocarcinoma and primary sclerosing cholangitis (PSC) from those with PSC alone.
<40 U/mL. Serum markers are not specific for malignancy, and values may vary by method.
* Reference ranges may change over time. Please refer to the original patient report when evaluating results.