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Test Code CA 15-3 CA 15-3

Important Note

*This test is ordable in Cerner as CA 15-3

Patient results determined by assays using different manufacturers or methods may not be comparable.

Specimen Requirements

Specimen Type: Blood  
Container/Tube: Serum

Preferred: Light-green top (lithium heparin gel)

Acceptable: Gold top, serum gel

Specimen Volume: Full tube

Specimen Minimum Volume: 2 mL

Collection Instructions:

1. Send specimen in original tube.

2. If there is a delay in transport of >1 hour, centrifuge tube.

                                                                              

Reference Values

Normal Reference Values:

 

Performing Laboratory

Rutland Regional Medical Center Laboratory

Day(s) Performed

Daily

Available STAT

Analytical Time:

1 day

Test Classification and CPT Coding

  • CPT: 86300
  • LOINC: 83083-6
  • EMR Order Code: L701139
  • EMR Result code: L802820

Additional Information

CA 15-3 values determined on patient samples by different testing procedures cannot be directly compared with one another and could be the cause of erroneous medical interpretations.  If there is a change in the CA 15-3 assay procedure used while monitoring therapy, then the CA 15-3 values obtained upon changing over to the new procedure must be confirmed by parallel measurements with both methods.

Methodology

Manufacturer: Roche Diagnostics

Analyzer: Cobas Pro’s

Methodology: Electrochemiluminescence Immunoassay (ECLIA)