PSA Total and Free
Specimen Requirements
Specimen Type: Blood
Container/Tube:
Preferred: Light-green top (lithium heparin gel or green-yellow)
Specimen Fill 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.
Specimen Transport Temperature
Refrigerated
Days Preformed
Daily
Available STAT
Analytical Time:
1 day
Test Codes
Test Classification and CPT Coding
- CPT: 84153, 84154
- LOINC: 83113-1
- EMR Order Code: L7
- EMR Result code
Methodology
Electrochemiluminescence assay (ECLIA); Free PSA values determined on patient samples by differing testing procedures cannot be directly compared with one another and could be the cause of erroneous interpretations.; Test results cannot be interpeted as absolute evidence for presence or abscense of malignant disease.