Sign in →

Test Code TGAB Thyroglobulin Antibody 

Important Note

Medicare frequency limitations exist for this test in addition to diagnosis requirements. Click on link for list of medically necessary diagnoses: http://www.munsonhealthcare.org/medical-necessity. Click on link for Advance Beneficiary Notice of Noncoverage form: Advance Beneficiary Notice of Noncoverage

EHR Test Codes

  Test Code Test Name
Atlas TGAB Thyroglobulin Antibody 
Cerner   Thyroglobulin Antibody 

Specimen Requirements

Preparation of Patient: 

None

 

Container Type: 

Gold Top 6mL SST Gel & Clot Activator Tube

Specimen Type:

Serum

 

Specimen Volume: 

2.5 mL Serum minimum .5 mL

 

Specimen Handling/Transport:

Separate serum from cells within 2 hours of collection.

Transport ambient, refrigerated or frozen.

 

Specimen Stability/Storage:

8 hours ambient room temperature

2 days refrigerated 2-8°C

>2 days frozen -20°C

Performing Laboratory

Munson Medical Center Laboratories

Chemistry Department

Priority, Frequency, & Turnaround

Priority:

Non-Emergent

 

Frequency:

24 hours 7 days a week

 

Turnaround:

0 - 1 days

Methodology

Chemiluminescence Immunoassay

Reporting

Reference Range:

0 - 4 IntlUnit/mL

 

Interpretive Data

Biotin supplements may falsely decrease this analyte.

 

Interpretive Data:
Biotin supplements may falsely increase this analyte.

 

Critical Decision:

None

Clinical Significance

Testing for Thyroglobulin antibodies is useful in diagnosing autoimmune thyroid disorders such as: Hashimotos disease, postpartum thyroiditis, neonatal hypothyroidism and Graves disease.

 

Thyroglobulin autoantibodies (TgAb) are often present in patients with autoimmune thyroid disease. Approximately 10% of healthy individuals have TgAb at measurable levels. TgAb can be detected in 30% of patients with Graves' disease and in 85% of patients with Hashimoto's thyroiditis.  However, elevated levels of autoantibodies to thyroid peroxidase (TPO autoantibodies) occur more frequently than high TgAb levels in these diseases. Sensitive TgAb methods are needed to identify patient sera that contain thyroglobulin autoantibodies that may interfere with serum thyroglobulin measurements.

CPT Code(s)

86800