What does serum thyroxine mean?

Thyroid hormone is the normal thyroid hormone, thyroid hormone is divided into T3, T4, etc., the main role is T3. Thyroid hormone maintains human metabolism and growth and development, and improves the excitability of the nervous system, and also has a certain role in body temperature regulation. Thyroid hormone is a relatively important hormone in the human body. With people's attention, including routine physical examination, more and more thyroid hormone can be seen.