Cancer Antigen 19-9

Test Code
CA19F


Alias/See Also
CA 19-9, 19-9, Cancer Antigen, Pancreas Antigen


CPT Codes
86301

Preferred Specimen
Light Green (PST)


Other Acceptable Specimens
Serum (Red) or Gold (SST) or Orange (OJ) or Tiger Top Serum


Instructions
Allow serum samples to clot completely before centrifugation.
Keep tubes stoppered at all times.
Within two hours after centrifugation, transfer at least 500 microliters of cell-free sample to a storage tube and tightly stopper.
 


Specimen Stability
  • Store samples tightly stoppered at room temperature (15-30°C) for no longer than eight hours.
  • If the assay will not be completed within eight hours, refrigerate the samples at 2-8°C.
  • If the assay will not be completed within 48 hours, or for shipment of samples, freeze at -20°C or colder. Thaw samples only once.


Reject Criteria (Eg, hemolysis? Lipemia? Thaw/Other?)
Hemolysis, Lipemia


Methodology
Beckman DXI

Setup Schedule
24x7


Reference Range
0-35 U/mL


Clinical Significance
CA 19-9 is used to help differentiate between cancer of the pancreas and other conditions such as pancreatitis and to help monitor cancer  treatment.


Performing Laboratory
CRMC Laboratory



The CPT Codes provided in this document are based on AMA guidelines and are for informational purposes only. CPT coding is the sole responsibility of the billing party. Please direct any questions regarding coding to the payor being billed. Any Profile/panel component may be ordered separately. Reflex tests are performed at an additional charge.