Specimen must arrive within 2 hours of draw.
Container/Tube: Serum gel tube
Specimen Volume: 5 mL of serum
Transport Temperature: Ambient
Collection Instructions: Allow specimen to clot for 30 minutes. If there is a delay in transport of ≥2 hours, send specimen refrigerated. If there is a delay in transport of ≥24 hours,pour serum over into plastic vial and send specimen frozen in plastic vial.
Chemiluminescence Immunoassay
Total PSA: 0-4 ng/mL
% Free PSA: >25%
Free PSA values alone have not been shown to be effective in patient management and should not be used. Serum PSA concentrations (free, total, and % free PSA) should not be interpreted as absolute evidence for the presence or absence of prostate cancer.
Monday through Sunday
84153-PSA, total
84154-PSA, free