Test Directory

Test Code
PSARF
Test Name
PSA, Total with Reflex
CPT Codes
84153 or G0103 when appropriate
Included Tests
  • Prostate Specific Antigen (PSA), Total

Reflexed when appropriate:

  • Prostate Specific Antigen, Free
Expected Turnaround Time
1 day
Clinical Utility
In patients not previously diagnosed with prostatic cancer. Total PSA screening values in the range of 4.00 - 10.00 ng/mL warrent further testing as an aid in discriminating between prostate cancer and benign disease. Reflex testing with a Free PSA assay and the calculation of a % Free PSA value may improve the discrimination in men with intermediate levels of Total PSA and non-suspicious digital rectal examination (DRE).
Specimen and Container Info

Specimen Type: Serum

Preferred Collection Container: Gold Top, Serum Separator

Alternate Collection Container: Red Top, Separator

Minimum Acceptable Volume: 1.4 mL

Processing and Submission Instructions

Separator tubes: Contains clot activator and gel for separating serum from cells, but not anticoagulant. Separate serum from cells as soon as the clot has formed (30 minutes). If specimen is centrifuged before clotting is complete, a fibrin clot will form on top of the cell. This may cause the gel barrier to not be intact and could cause improper separation of serum and cells, possibly affecting test results.

Transport Instructions

Transport to the laboratory refrigerated.

Stability Requirements

Refrigerated

24 hours
Methodology
Chemiluminescent Immunoassay
Reference Intervals
Performing Location
Roble Road Core Laboratory
Testing Schedule
Routine, daily