Perforin/Granzyme B

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Effective Jan. 5, 2026: Temporary Age-Based Visitor Restrictions at UNC Health for all inpatient and waiting areas throughout its inpatient hospitals.

Tube Type

Test ID		LAB5903
EPIC ORDER		PERFORIN/GRANZYME B
CPT Code(s)		88184, 88185 x4
Group/Individual Test		Group
Laboratory		Core Referral Testing
Tube Station		30
Specimen	Routine:	3 mL blood/lavender EDTA tube; See Comments
	Micro:	2 mL blood
Availability	Routine:	Reference Laboratory - Cincinnati Children's Hospital Medical Center
Turnaround Time		4-6 days
Reference Range		See separate report
Comments	Sample must be kept at room temperature. Specimen must be collected Monday - Thursday between 10:00 am and 2:00 pm and received in the laboratory by 3:00 pm.

Reviewed by J. Carr on November 12, 2025

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