Understanding TSH: What is a Normal TSH Level?
Thyroid-stimulating hormone (TSH) is a hormone secreted from the pituitary gland that gives an indication of how much thyroid hormone is present in the body. Traditionally, doctors use TSH levels to determine if a patient’s thyroid is functioning properly. TSH levels should not be used in isolation to assess tissue levels of thyroid hormone because different body tissues have different demands for thyroid hormone.
In this article, we will discuss what TSH is, why it is not the best marker for thyroid function, and what a normal TSH level is.
What is TSH?
TSH stands for thyroid stimulating hormone, which is secreted from the pituitary gland. TSH gives an indication of how much thyroid hormone is present in the body. Doctors use TSH levels to determine if a patient’s thyroid is functioning properly.
TSH is not a marker of what is happening elsewhere in the body, and each tissue has a different demand for thyroid hormone. This means that TSH levels should not be used in isolation to assess tissue levels of thyroid hormone. TSH is a marker of what is happening in the pituitary, but it is not a marker of what is happening elsewhere in the body.
What is a normal TSH level?
The general state of health of most people is somewhat unhealthy, and the majority of people have some degree of insulin resistance, which is an abnormal metabolic state. Therefore, TSH levels should be compared to healthy adults, not to unhealthy people. In healthy adults, TSH levels are usually less than one. However, TSH levels can be affected by many factors, including iodine intake, thyroid conversion, and medication.
Conclusion
TSH levels should not be used in isolation to assess tissue levels of thyroid hormone. Instead, a more comprehensive approach should be taken, including other lab tests such as free t3, free t4, and reverse t3. These advanced tests give a better idea of what is happening in the body and can help determine if a patient’s thyroid is functioning properly. If you have any questions about TSH levels, please leave them in the comments below.