Laboratory Test Information Guide

Details for Anti-Thyroglobulin Antibodies, Serum/Plasma

Test Name: Anti-Thyroglobulin Antibodies, Serum/Plasma
Alternate Name(s): Thyroid Antibodies
Laboratory: Core
Specimen Type: Adult:
5 mL Gold top Vacutainer tube

0-2 years: 0.5 mL Red or Gold top Microtainer
2-10 years: 3 mL Red top Vacutainer tube

Lavender top (EDTA) tubes are also acceptable

Light Green top (Li-Heparin) tubes are NOT acceptable
Collection Information: Minimum volume of serum required is 700 L for adult samples or 200 L for pediatric samples.
Test Schedule: As required
Turnaround time from when specimen
is received in testing laboratory:
24 hours
Reference Range: ≤ 115 IU/mL
Effective Date: 2009-02-12
Revised Date: 2020-01-27
Critical Value:  
Interpretive Comments: The presence of anti-thyroglobulin antibodies may cause falsely low thyroglobulin measurements.
Special Processing:  
Comments: Biotin may interfere with this test. Samples should not be taken from patients receiving high biotin doses (i.e. > 5 mg/day) until at least 8 hours after the last biotin administration.

Measurement of anti-thyroglobulin antibodies is automatically performed with each serum thyroglobulin test order.

Thyroglobulin concentrations > 2000 g/L may lead to falsely elevated anti-thyroglobulin antibody results.
Method of Analysis: Roche Electrochemiluminescence
Critical Information Required:  
Storage & Shipment: Store and ship serum or plasma frozen.
System Codes: 
Referred To:  

Questions? Comments? Contact Laura Gopaul