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.
Test Details
4 hours
- Cancer Antigen 19-9
- Carbohydrate Antigen 19-9
Specimen Requirements
Collect blood in a red top or SST tube. Centrifuge and aliquot serum within 8 hours of collection into plastic vial and refrigerate at 2-8C for 48 hours. For long term storage, freeze at -20C. Freeze only once.
Red Top Tube
0.50 mL serum
0.25 mL serum
Additional Information
Tested by a chemiluminescent immunoassay manufactured by Siemens Healthineers, performed on Atellica IM system. Results determined from different manufacturers and/or methods may not be comparable.