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Due to winter weather, some UNC Health facilities are closed or have altered operating hours. View clinic delays and closures.

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

Published on September 19, 2023

Apolipoprotein E Genotyping

Tube Type

Test ID		LAB11564
EPIC ORDER		Apolipoprotein E Genotyping
CPT Code(s)		81401, G0452
Group/Individual Test		Individual
Laboratory		Molecular Genetics Laboratory
Tube Station		30
Specimen	Routine:	3.0 mL Blood/Lavendar EDTA tube/Yellow ACD-A tube also acceptable; See Comment
	Micro:	1.0 mL Blood
Availability	Routine:	Weekly, no weekends or holidays
	STAT:	N/A
Turnaround Time		7 Days
Reference Range		APOE e3/e3 (Normal Genotype)

Comments	APOE Genotyping assay Directions for collecting and mailing specimens Molecular Genetics Test Request form

Reviewed by J. Carr on November 20, 2025

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