Thyroglobulin Panel

Thyroglobulin Panel

Test Code

30278
84432, 86800
30278
84432, 86800
Not offered in Quest Diagnostics Nichols Institute (IFD) – San Juan Capistrano. Please provide SERVICE AREA INFORMATION to find available tests you can order.
In-home collection may be available in your area for purchase through Quest Mobile.

Clinical Significance

Thyroglobulin Panel - Thyroglobulin (TG) is a secretory product only of the thyroid gland. The major clinical use of serum TG measurement is to monitor, but not to diagnose, patients with well-differentiated thyroid cancers. The measurement of thyroglobulin, after thyroidectomy and ablation of the thyroid gland, is useful to determine metastasis.
Deficient TG synthesis is observed in infants with goitrous hypo-thyroidism. Most patients with thyroid autoimmune disease have thyroglobulin antibody. With immunometric assays (sandwich assays), TGAB interference typically produces inappropriately low TG results, ...

Test Resources

Test FAQ

Biotin: Interference with Laboratory Assays

Test FAQ

STRENSIQ® (Asfotase Alfa) Assay Interference

Clinical Focus

Thyroid Dysfunction in Nonpregnant Adults

Test Details

Includes

  • Thyroglobulin Antibodies and Quantitative Thyroglobulin

Patient Preparation

Dietary supplements containing biotin may interfere in assays and may skew results to be either falsely high or falsely low. For patients receiving the recommended daily doses of biotin, draw samples at least 8 hours following the last biotin supplementation. For patients on mega-doses of biotin supplements, draw samples at least 72 hours following the last biotin supplementation.

Methodology

Immunoassay (IA)

Reference Range(s)

See Laboratory Report

Alternative Name(s)

ATG and TG,TG and ATG

LOINC® Codes, Performing Laboratory

Service Area must be determined
Thyroglobulin Antibodies and Quantitative Thyroglobulin
Dietary supplements containing biotin may interfere in assays and may skew results to be either falsely high or falsely low. For patients receiving the recommended daily doses of biotin, draw samples at least 8 hours following the last biotin supplementation. For patients on mega-doses of biotin supplements, draw samples at least 72 hours following the last biotin supplementation.

Methodology

Immunoassay (IA)

Reference Range(s)

See Laboratory Report

Alternative Name(s)

ATG and TG,TG and ATG
Service Area must be determined

Preferred Specimen(s)

2 mL serum

Minimum Volume

1 mL

Collection Instructions

Administration of STRENSIQ may interfere in certain assays and may falsely elevate values. For patients receiving STRENSIQ, consideration should be given to using alternate methods.

Transport Temperature

Room temperature

Specimen Stability

  • Room temperature: 7 days
  • Refrigerated: 7 days
  • Frozen: 28 days

Reject Criteria

Gross hemolysis • Grossly lipemic

Setup Schedule, Transport Container

Service Area must be determined
2 mL serum
1 mL
Administration of STRENSIQ may interfere in certain assays and may falsely elevate values. For patients receiving STRENSIQ, consideration should be given to using alternate methods.
Room temperature
Room temperature: 7 days
Refrigerated: 7 days
Frozen: 28 days
Gross hemolysis • Grossly lipemic
Service Area must be determined
Not offered in Quest Diagnostics Nichols Institute (IFD) – San Juan Capistrano. Please provide SERVICE AREA INFORMATION to find available tests you can order.
In-home collection may be available in your area for purchase through Quest Mobile.
Test Details

Clinical Significance

Test Resources

Reference ranges are provided as general guidance only. To interpret test results use the reference range in the laboratory report.

The CPT codes provided are based on AMA guidance and are for informational purposes only. CPT coding is the sole responsibility of the billing party. Please direct any questions regarding coding to the payer being billed.

This material contains content from LOINC® (http://loinc.org). The LOINC Table, LOINC Table Core are copyright © 1995-2019, Regenstrief Institute, Inc. and the Logical Observation Identifiers Names and Codes (LOINC) Committee and is available at no cost under the license at http://loinc.org/license.

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