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
Reference Interval:
A reference interval has not been established for body fluid specimens.
Interpretive Data: The Roche CA 19-9 electrochemiluminescent immunoassay is used. 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. The CA 19-9 value, regardless of level, should not be interpreted as absolute evidence of the presence or absence of malignant disease.

See Compliance Statement B: www.aruplab.com/CS
CPT Code(s): 86301
Cross References: CA 19-9 (Cancer Antigen-GI (CA 19-9), Body Fluid)