Prostate Specific Antigen, free
Test name: Prostate Specific Antigen, free
Order Code: FPSA
Preferred Specimen: 2mL serum in a Serum Separator Tube (SST or Tiger-top)
CPT Code: 84154
Collection: Allow SST to clot in an upright position for 30 min, then centrifuge sample within 2 hours of collection. Refrigerate.
Special Instructions and Considerations: Samples should not be taken from patients receiving therapy with high biotin doses (i.e. > 5 mg/day) until at least 8 hours following the last biotin administration. Flutamide at therapeutic daily dosage levels results in slightly depressed fPSA values.
Transport Temperature: Refrigerated
Specimen Stability: 5 days refrigerated