Thyroglobulin Panel (Thyroglobulin Tumor Marker)

Includes: Thyroglobulin Ab & Thyroglobulin (performed by Immunoassay or LC-MS/MS as determined by Ab result)

Tube Type

Test ID		LAB5770
EPIC Order		THYROGLOBULIN PANEL; THYROGLOBULIN TUMOR MARKER, SERUM
CPT Code(s)		86800, 84432
Group/Individual Test		Group
Laboratory		Core Referral Testing
Tube Station		30
Specimen	Routine:	6 mL blood/red plain top tube/NO gold SST; See Comments
	Micro:	3.0 mL blood
Availability	Routine:	Reference Laboratory - Mayo Clinic Laboratories
Turnaround Time		5-8 days
Reference Range	Normal:	See separate report
Comments		Samples must be processed within 2 hrs of collection. For 12 hours before collection, patients should not take multivitamins or dietary supplements containing biotin (vitamin B7). This test is performed in a reflexive manner. The thyroglobulin antibody is performed first. The thyroglobulin methodology is determined by the antibody results. If antibody results are negative (<1:8), the thyroglobulin is performed by immunoassay. If the antibody results are positive (>/=1:8), the thyroglobulin is performed by LC-MS/MS to eliminate possible interference from elevated antibodies.

Reviewed by J. Carr on December 15, 2025

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