3547 PSA (Prostate-Specific Antigen), Free & Total

Components
NAME METHOD REFERENCE RANGE UNITS
PSA Free ICMA  By Report  ng/mL 
PSA Total ICMA  < 4.00  ng/mL 
% Free PSA CALC  By Report  % 


Specimen Requirements
TYPE VOLUME TEMPERATURE INSTRUCTIONS
PRIMARY
1 Serum 2 (1) mL   Ambient - 5 Day(s), Refrigerated - 5 Day(s), Frozen - 2 Month(s)  


Clinical utility
The percent free PSA is inversely proportional to the risk of prostate cancer. Elevated total PSA and low % free PSA indicate an increased likelihood of finding prostate cancer. Conversely, low total PSA and elevated % free PSA indicate a decreased likelihood of finding prostate cancer. Serial measurements of PSA are useful in determining recurrence of prostate cancer after treatment.


Reported: Same day

CPT Code: 84153, 84154

Notes: 1) Diagnostic code required for third party reimbursement. 2) To obtain serial graphic reports of PSA values use test code 3547SR. Provide patient SSN as unique identifier.