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Labcorp Oklahoma, Inc.
Test Directory


Index:

Prostate Specific Antigen (PSA), Free and Total

Order Name PSA FREE
Test Number: 2001575
Revision Date 05/28/2021
Test Name Methodology LOINC Code
Free PSA
Chemiluminescence Assay 10886-0 
Total PSA
Chemiluminescence Assay 2857-1 
% Free PSA
Calculation 12841-3 
SPECIMEN REQUIREMENTS
Specimen Specimen Volume (min) Specimen Type Specimen Container Transport Environment
Preferred 2 mL (1) Serum Clot Activator SST Frozen
Instructions Collect prior to biopsy, prostatectomy, prostatic massage or digital rectal exam.
Allow 30min. for specimen to clot. Separate Serum from cells/gel within 3 hours of collection. Freeze if testing will not be completed within 24 hours.
Specimen stability: Room temperature  N/A; Refrigerated 24hrs; Frozen 1mo.
GENERAL INFORMATION
Testing Schedule Mon - Fri 
Expected TAT 2-4 Days  
CPT Code(s) 84153, 84154
Lab Section Chemistry