T4 and TSH
Components: T4 total , Thyroid Stimulating Hormone (TSH)
T4 (thyroxine) and TSH (thyroid-stimulating hormone) tests are laboratory tests used to evaluate the function of the thyroid gland.
The thyroid gland produces hormones that regulate the body's metabolism, and T4 is the main hormone produced by the thyroid. TSH is produced by the pituitary gland and regulates the production and release of T4 by the thyroid.
A T4 test measures the amount of thyroxine in a person's blood. High levels of T4 can indicate an overactive thyroid (hyperthyroidism), while low levels can indicate an underactive thyroid (hypothyroidism).
A TSH test measures the amount of TSH in a person's blood. High levels of TSH can indicate an underactive thyroid (hypothyroidism), while low levels can indicate an overactive thyroid (hyperthyroidism).
Together, T4 and TSH tests can provide important information about the overall function of the thyroid gland and can help diagnose thyroid disorders such as hyperthyroidism, hypothyroidism, and thyroid nodules. The results of these tests, along with a person's clinical symptoms and other factors, can help healthcare providers determine the best course of treatment for a person with a thyroid disorder.
Frequently ordered together
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