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 or plasma separator tube. Also acceptable: Green (sodium or lithium heparin), lavender (EDTA), or pink (K2EDTA).
- Specimen Preparation
- Allow specimen to clot completely at room temperature. Separate serum or plasma 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
- Frozen.
- 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: 8 hours; Refrigerated: 5 days; Frozen: 3 months
Reference Interval
0-37 U/mL
Interpretive Data
Thistest 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
CPT Code(s)
86301
Components
| Component Test Code* | Component Chart Name | LOINC |
|---|---|---|
| 0080461 | Cancer Antigen-GI (CA 19-9) | 24108-3 |
Aliases
- CA 19-9
- CA-GI
- Cancer Antigen 19-9
- Cancer Antigen-GI
- Carbohydrate Antigen
- Carbohydrate Antigen 19-9
- GI Cancer Antigen