Test Overview
Test Methodology

Chemiluminescence Immunoassay (immunoenzymatic)

Test Usage

Useful to assess presence of residual papillary-follicular carcinoma, thyroid, following resection

Reference Range *

Thyroglobulin: 0.0 - 35.0 ng/mL; Thyroglobulin Antibody: 0 - 3 IU/mL.

Test Limitations

Not valid for medullary carcinoma of thyroid. High values of thyroglobulin are found in nodular goiter and normal levels are found in patients with small thyroid carcinomas. Therefore, this is not a screening test for thyroid cancer. There is interference in serums containing autoantibodies.

Test Details
Days Set Up
Monday, Thursday
Analytic Time

8 hours

Soft Order Code
THYRG
MiChart Code
Anti-Thyroglobulin Antibody
Synonyms
  • THYG
  • THYROGLOBULIN
  • Thyroglobulin, Tumor Marker, Serum
  • Thyroid Antibody and Thyroglobulin
  • Antithyroglobulin Antibody and Thyroglobulin
Laboratory
Chemical Pathology
Section
Special Chemistry
Specimen Requirements
Collection Instructions

Collect specimen in SST tube. Centrifuge, aliquot serum into a plastic vial and freeze.

Normal Volume
1 mL serum
Minimum Volume
0.5 mL serum
Additional Information

Thyroglobulin is not the same as thyroxine-binding globulin. It is a prohormone made by thyroid follicular cells.

Billing
CPT Code
84432, 86800
Fee Code
23353, 21921
LOINC
57780-9 (group); 3013-0 (thyroglobulin), 56536-6 (thyroglobulin antibody)
NY State Approved
No