Thyroid Antithyroglobulin Antibody (TAA) Blood Test

The Thyroid Antithyroglobulin Antibody (TAA) Blood Test measures TAA levels to screen for autoimmune disorders like thyroiditis.

Quest
LabCorp

Sample Report

Test Code: 006685

CPT Code: 86800

Also Known As: Thyroglobulin Antibody; Antithyroglobulin Antibody; TAA

Methodology:

Immunochemiluminometric Assay (ICMA)

Specimen Type: Blood

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.

Sample Report

Test Code: 267

CPT Code: 86800

Also Known As: Thyroglobulin Antibody; Antithyroglobulin Antibody; TAA

Methodology:

Immunoassay (IA)

Specimen Type: Blood

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.

Description

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: