Thyroid Antithyroglobulin Antibody (TAA) Blood Test
The Thyroid Antithyroglobulin Antibody (TAA) Blood Test measures TAA levels to screen for autoimmune disorders like thyroiditis.
Also Known As:
Thyroglobulin Antibody; Antithyroglobulin Antibody; TAA
Methodology:
Immunochemiluminometric Assay (ICMA)
Preparation:
No fasting is required. Patients should stop biotin consumption at least 72 hours prior to the collection.
Test Results:
2-3 days. May take longer based on weather, holiday, or lab delays.
Walk-In Lab is prohibited from selling LabCorp tests to residents in the following states:NY, NJ, RI, MA, MD
Methodology:
Immunoassay (IA)
Preparation:
No fasting is required. Patients should stop biotin consumption at least 72 hours prior to the collection.
Test Results:
2-3 days. May take longer based on weather, holiday, or lab delays.
Walk-In Lab is prohibited from selling Quest tests to residents in the following states:AZ, NY, NJ, RI
What is the purpose of this test?
Order this Thyroid Antithyroglobulin Antibody (TAA) Blood Test, which measures TAA levels to screen for autoimmune disorders like thyroiditis. The protein thyroglobulin is present in thyroid cells, but a small quantity is released into the bloodstream. Occasionally, the immune system generates antibodies against this protein.
If an individual is suspected of having thyroiditis, antithyroglobulin antibodies can indicate damage to the thyroid gland caused by the immune system. Their healthcare provider may measure them. Monitoring thyroglobulin antibody levels after treatment for thyroid cancer can help healthcare providers determine the best test to use to detect a potential cancer recurrence.
What do abnormal TAA results indicate?
If a blood test shows the presence of antithyroglobulin antibodies, it indicates a positive result. The following conditions may accompany these antibodies:
- Graves disease or overactive thyroid
- Hashimoto thyroiditis
- Subacute thyroiditis
- Underactive thyroid
- Systemic lupus erythematosus
- Type 1 diabetes
Women who are pregnant and relatives of individuals with autoimmune thyroiditis may also have positive test results for these antibodies.
