The Thyroid Antibodies test evaluates the presence of antibodies against thyroid peroxidase (TPO) and thyroglobulin (Tg), which are markers for autoimmune thyroid disorders. Elevated levels of these antibodies can indicate conditions such as Hashimoto’s thyroiditis, characterized by symptoms like fatigue, weight gain, and cold intolerance, or Graves’ disease, which may present with symptoms like weight loss, rapid heart rate, and heat intolerance. This test is essential for diagnosing and managing autoimmune thyroid diseases and monitoring treatment effectiveness.