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 NameLOINC
0080461Cancer Antigen-GI (CA 19-9)24108-3
* Component test codes cannot be used to order tests. The information provided here is not sufficient for interface builds; for a complete test mix, please click the sidebar link to access the Interface Map.
Aliases
  • CA 19-9
  • CA-GI
  • Cancer Antigen 19-9
  • Cancer Antigen-GI
  • Carbohydrate Antigen
  • Carbohydrate Antigen 19-9
  • GI Cancer Antigen