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Anti-Thyroglobulin IgG

Test Code: 30056
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Clinical Utility

Anti-thyroglobulin antibodies have been implicated in thyroid autoimmune disease. Approximately 10% of healthy individuals have thyroglobulin autoantibodies at low levels. In many cases of Hashimoto's disease and Graves' disease thyroid peroxidase autoantibodies are elevated.


The anti-thyroglobulin assay is performed on the Immulite 2000 analyzer system using highly purified thyroglobulin coated beads. The assay is calibrated against WHO 1st IRP 65/93. This test has been cleared or approved for diagnostic use by the U.S. Food and Drug Administration.

3-5 business days from receipt of specimen

Specimen Type Order Code CPT Code NY Approved Volume Assay Range Special Instructions
serum 30056 86001 Yes 0.5 mL (min. 150 uL) See Limit of Quantitation Guide
  • Collect 1-2 mL whole blood in red top tube.
  • Centrifuge and transfer 0.5 mL serum into a transfer tube.
  • Ship at ambient or frozen temperature Monday through Friday.
  • Specimens are stable for 1 week ambient, 4 weeks refrigerated; freeze for storage greater than 4 weeks.

20-3,000 IU/mL

Specimens are approved for testing in New York only when indicated in the Specimen Information field above.

The CPT codes provided are based on Viracor Eurofins' interpretation of the American Medical Association's Current Procedural Terminology (CPT) codes and are provided for general informational purposes only. CPT coding is the sole responsibility of the billing party. Questions regarding coding should be addressed to your local Medicare carrier. Viracor Eurofins assumes no responsibility for billing errors due to reliance on the CPT codes illustrated in this material.

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