Chromogranin A, McLendon Clinical Laboratories

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Tube Type

Test ID		LAB5603
EPIC Order		CHROMOGRANIN A
CPT Code(s)		86316
Group/Individual Test		Individual
Laboratory		Core Referral Testing
Tube Station		30
Specimen	Routine:	4 mL blood/red plain tube/gold SST tube also acceptable; See Comments
	Micro:	0.6 mL blood
Availability	Routine:	Reference Laboratory - Mayo Clinic Laboratories
Turnaround Time		3-5 days
Reference Range		See separate report
Comments	Proton pump inhibitor drugs should be discontinued for at least 2 weeks before collection Sample must be processed and frozen within 4 hours of collection

Reviewed by J. Carr on December 03, 2025

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