Prostate Specific Antigen, Diagnostic (PSA, Diagnostic)

Tube Type

Test ID		LAB116
EPIC Order		PSA, DIAGNOSTIC
CPT Code(s)		84153
Group/Individual Test		Individual
Laboratory		Core Laboratory
Tube Station		30
Specimen	Routine:	4 mL blood/gold SST tube/red plain tube also acceptable; See Comments
	Micro:	0.9 mL blood gold top of red top bullet
Stability		Spun & Separated Room Temperature: 8 hours Spun & Separated Refrigerator: 48 hours Spun & Separated Frozen: 30 days
Availability	Routine:	24 hrs/day
Turnaround Time	Routine:	2 hrs
Reference Range	Normal:	≤4 ng/mL
Comments	To be used when managing diagnosed prostatic malignancies or detecting persistent disease in patients following treatment. Tumor marker assays cannot be used interchangeably; this test is performed using the Siemens Atellica PSA Immunoassay effective 7/13/21. This assay is a 2-site sandwich immunoassay using direct chemiluminescent technology. Heterophilic antibodies may cause interference.

Reviewed by J. Carr on January 05, 2026

UNC Hospitals
McLendon Clinical Laboratories
101 Manning Drive
Chapel Hill, NC 27514