Collect	Gold / SST
	Transport	Refrigerated
	Minimum Volume	0.5 mL Serum
	Notes	Free PSA is only stable refrigerated for 48 hours. If sample will not be tested within 48 hours please freeze the serum.

Prostate Specific Antigen Percent Free PSA

84153, 84154 *The CPT codes provided are based on the AMA guidelines and for informational purposes