The Thyroxine – Total (TT4) test is a blood test used to measure the level of thyroxine hormone in the body. Thyroxine is a hormone produced by the thyroid gland that plays a critical role in regulating metabolism, growth, and development. The TT4 test is commonly used to diagnose thyroid disorders such as hypothyroidism and hyperthyroidism. It is also used to monitor the effectiveness of thyroid hormone replacement therapy in patients with thyroid disease. Results of the TT4 test can help healthcare providers determine the appropriate course of treatment for patients with thyroid disorders.
