Cancer Antigen-GI (CA 19-9)
0080461
Ordering Recommendation
Mnemonic
CA-GI
Methodology
Quantitative Electrochemiluminescent Immunoassay
Performed
Sun-Sat
Reported
Within 24 hours
New York DOH Approval Status
This test is New York DOH approved.
Submit With Order
Specimen Required
- Patient Preparation
- Collect
- Serum Separator Tube (SST) or Plasma Separator Tube (PST). Also acceptable: Green (Sodium or Lithium Heparin), Lavender (EDTA), or Pink (K2EDTA).
- Specimen Preparation
- Allow specimen to clot completely at room temperature. Separate from cells ASAP or within 2 hours of collection. Transfer 1 mL serum or plasma to an ARUP Standard Transport Tube. (Min: 0.5 mL)
- Storage/Transport Temperature
- Refrigerated.
- Unacceptable Conditions
- Body Fluid (refer to Cancer Antigen-GI (CA19-9), Body Fluid, ARUP test code 0020746). Specimens collected in sodium citrate.
- Remarks
- Stability
- After separation from cells: Ambient: 5 days; Refrigerated: 2 weeks; Frozen: 3 months
Reference Interval
0-37 U/mL
Interpretive Data
This test uses Roche CA 19-9 electrochemiluminescent immunoassay. Results obtained with different test methods or kits cannot be used interchangeably. CA 19-9 is useful in monitoring pancreatic, hepatobiliary, gastric, hepatocellular, and colorectal cancer. CA 19-9 value regardless of level, should not be interpreted as absolute evidence of the presence or absence of malignant disease.
Note
Hotline History
View Hotline History
CPT Code(s)
Components
Component Test Code* | Component Chart Name | LOINC |
---|---|---|
0080461 | Cancer Antigen-GI (CA 19-9) | 83084-4 |
Aliases
- CA 19-9
- CA-GI
- Cancer Antigen 19-9
- Cancer Antigen-GI
- Carbohydrate Antigen
- Carbohydrate Antigen 19-9
- GI Cancer Antigen