ARUP's Laboratory Test Directory

Cancer Antigen-GI (CA 19-9), Body Fluid : 0020746

Mnemonic: CA-GI FL

Methodology: Quantitative Electrochemiluminescent Immunoassay
Performed: Sun-Sat
Reported: Within 24 hours
Specimen Required: Collect: Body fluid.

Specimen Preparation: Transport 1 mL body fluid. (Min: 0.5 mL)

Storage/Transport Temperature: Refrigerated.

Remarks: Indicate source on test request form.

Unacceptable Conditions: Breast milk and salivary fluid. Specimens too viscous to be aspirated by instrument.

Stability (collection to initiation of testing): Ambient: 8 hours; Refrigerated: 5 days; Frozen: 3 months
Interpretive Data: The Roche Modular E170 CA 19-9 electrochemiluminescent immunoassay is used.  Results obtained with different assay methods or kits cannot be used interchangeably.  CA 19-9 is useful in monitoring pancreatic, hepatobiliary, gastric, hepatocellular, and colorectal cancer.  The CA 19-9 assay value, regardless of level, should not be interpreted as absolute evidence of the presence or absence of malignant disease.  This test is FDA cleared but is not labeled for use with body fluids.
CPT Code(s): 86301
Cross References: CA 19-9 (Cancer Antigen-GI (CA 19-9), Body Fluid)
 
 

 

 

 
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