PSA, Free and Total
Test Summary
In men over 50 years with total PSA between 4.0 and 10.0 ng/mL, the percent (%) free PSA gives an estimate of the probability of cancer. In these circumstances the measurement of the % free PSA may aid in avoiding unnecessary biopsies.
Elevated levels of Prostate Specific Antigen (PSA) have been associated with benign and malignant prostatic disorders. Studies indicate that in men 50 years or older measurement of PSA is a useful addition to the digital rectal exam in the early detection of prostate cancer. In addition, PSA decreases to undetectable levels following complete resection of the tumor and may rise again with recurrent disease or persist with residual disease. Thus, PSA levels may be of assistance in the management of prostate cancer patients.
Aliases
- PSA &
- FREE PSA
- FREE PSA
- PSA, Prostate Specific Antigen
Specimen Collection
Special Instructions
Preferred Specimen
Minimum Volume
Instructions
Collection notes: Avoid hemolysis. Invert tubes at least 8 times. Allow to clot in an upright position for 30 minutes. Within 2 hours, centrifuge tubes 10 minutes. Keep tightly stoppered.
Do NOT re-centrifuge tubes. Do NOT freeze the primary collection tube. Do not collect specimen after a transrectal biopsy, results may be falsely elevated.
Patient Preparation
Storage
Transport Temperature
Specimen Stability
- Room Temperature = 8 hours
- Refrigerated = 5 days
- Frozen = 12 weeks
Limitations
Other Acceptable Specimens
Unacceptable Specimens
Order Code
EPIC (Premier) Code
Includes
PSA, Free
PSA, % Free
CPT Code
- 84153
- 84154
Billing Code
- 300361
- 300359
CPT Statement
Methodology
FDA Status
Physician Attestation of Informed Consent
Testing Laboratory
2308 Sandridge Drive
Moraine OH, 45439
Department
Reference Range
Setup Schedule / Expected Turnaround Time
Specimen Collection
Special Instructions
Preferred Specimen
Minimum Volume
Instructions
Collection notes: Avoid hemolysis. Invert tubes at least 8 times. Allow to clot in an upright position for 30 minutes. Within 2 hours, centrifuge tubes 10 minutes. Keep tightly stoppered.
Do NOT re-centrifuge tubes. Do NOT freeze the primary collection tube. Do not collect specimen after a transrectal biopsy, results may be falsely elevated.
Patient Preparation
Storage
Transport Temperature
Specimen Stability
- Room Temperature = 8 hours
- Refrigerated = 5 days
- Frozen = 12 weeks