PSA, Free and Total
Test code
CPT code(s)*
Clinical significance
Test resources
Details
Includes
PSA, Total
PSA, Free
PSA, % Free
Methodology
Immunoassay (IA)
Alternative name(s)
PSA, Free,Fractionated PSA,PSA II,Prostate Specific Antigen Free and Total,Free PSA and Total PSA
Specimen requirements | |
|---|---|
| Patient preparation | None Specified |
| Preferred specimen(s) | 2 mL frozen serum |
| Minimum volume | 0.6 mL |
| Collection instructions | Do not collect specimen after a transrectal biopsy, results may be falsely elevated. Administration of STRENSIQ may interfere in certain assays and may falsely elevate values. For patients receiving STRENSIQ, consideration should be given to using alternate methods. |
| Transport container | Transport tube |
| Transport temperature | Select a service area to view this section. |
| Specimen stability | Room temperature: 72 hours Refrigerated: 72 hours Frozen: 5 months |
Reference Range(s)
PSA, Total
| Male | ≤4.0 ng/mL |
| Female | Not established |
| PSA, Free | See Laboratory Report |
PSA, % Free
| Male | >25 % (calc) |
| Female | Not established |
Reference ranges are provided as general guidance only. To interpret test results use the reference range in the laboratory report.
*The CPT codes provided are based on AMA guidance and are for informational purposes only. CPT coding is the sole responsibility of the billing party. Please direct any questions regarding coding to the payer being billed.
This material contains content from LOINC® (http://loinc.org). The LOINC Table, LOINC Table Core are copyright © 1995-2019, Regenstrief Institute, Inc. and the Logical Observation Identifiers Names and Codes (LOINC) Committee and is available at no cost under the license at http://loinc.org/license.
The tests listed by specialty and category are a select group of tests offered. For a complete list of Quest Diagnostics tests, please adjust the filter options chosen, or refer to our Directory of Services.