Test Overview
Test Methodology

Chemiluminescent Immunoassay

Test Usage

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.

Reference Range *

<40 U/mL. Serum markers are not specific for malignancy, and values may vary by method.

Test Details
Days Set Up
Daily, 24 hours
Analytic Time

4 hours

Soft Order Code
CA199
MiChart Code
CA 19-9 (Carbohydrate Antigen 19-9)
Synonyms
  • Cancer Antigen 19-9
  • Carbohydrate Antigen 19-9
  • CA19-9
Laboratory
Chemical Pathology
Section
Automation
Specimen Requirements
Collection Instructions

Collect blood in a red top or SST tube. Centrifuge, aliquot serum into plastic vial and refrigerate.

Alternate Specimen
Red Top Tube
Yellow Top Tube
Normal Volume
0.5 mL serum
Minimum Volume
0.25 mL serum
Billing
CPT Code
86301
Fee Code
32042
LOINC
2009-9
NY State Approved
No