Thyroglobulin Antibody (anti-Tg)

The Thyroglobulin Antibody (anti-Tg) test measures the level of antibodies against thyroglobulin, a protein produced by the thyroid gland. Thyroglobulin is involved in the production of thyroid hormones, and the presence of these antibodies can indicate an autoimmune response against the thyroid gland.

This test is commonly used to diagnose and monitor autoimmune thyroid disorders, such as Hashimoto's thyroiditis and Graves' disease. Elevated levels of anti-thyroglobulin antibodies can suggest that the immune system is mistakenly attacking thyroid cells, leading to conditions like hypothyroidism or thyroid dysfunction.

Monitoring anti-Tg antibody levels helps healthcare providers evaluate the presence and progression of autoimmune thyroid diseases, guide treatment decisions, and assess the effectiveness of ongoing therapies. Regular testing is important for managing autoimmune thyroid conditions and ensuring overall thyroid health and well-being.

Sample Requirements:
Gold SST Tube

Stability:
Serum: 4 days at 20-25 °C, 4 days at 2-8 °C,2 months at -20 °C (± 5 °C)

Turnaround Time:
4 hours

Critical Value:
Not applicable

Assay Interferences:
Recovery within ± 15 %

Bilirubin: ≤ 1129 µmol/L or ≤ 66 mg/dL

Hemoglobin: ≤ 0.373 mmol/L or ≤ 600 mg/dL

Intralipid: ≤ 2000 mg/dL

Biotin: ≤ 4912 nmol/L or ≤ 1200 ng/mL

Rheumatoid Factors: ≤ 300 IU/mL

Reference Range (IU/mL):
< 40