CA 27.29 (Cancer Antigen 27.29), McLendon Laboratories

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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

Breast Cancer Associated Ag

Test ID		LAB853
EPIC Order		CANCER ANTIGEN 27.29
CPT Code(s)		86300
Group/Individual Test		Individual
Laboratory		Core Laboratory
Tube Station		30
Specimen	Routine:	3.0 mL blood/gold SST tube
Stability	Spun/Separated:	Room Temperature - 8 hours Refrigerated - 2 days Frozen - 1 month
Availability	Routine:	24/7
Turnaround Time		8 hours
Reference Range	Normal:	≤38.6 U/mL
Comments	Tumor marker assays cannot be used interchangeably; this test is performed using the Siemens Atellica BR 27.29 Immunoassay effective 7/13/21. See Memo #172

Reviewed by J. Carr on January 05, 2026

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