Test Code PSA Prostate Specific Antigen- Diagnostic
Specimen Required
Lithium Heparin Plasma Separator Tube (Green) or
Serum Separator Tube (Yellow)
CPT Code
84153
Specimen Handling and Storage
Handle and store specimens in stoppered containers to avoid contamination and evaporation.
Centrifuge specimen to remove the plasma/serum from the cellular material after collection.
Specimen Stability
Refrigerated : 7 Days
Frozen : 4 Weeks
Additional Test Information
Different test methods cannot be used interchangeably. PSA results in a given patient sample determined with different tests and from different manufacturers can vary due to differences in test methods and reagent specificity.