Profile Includes:
Thyroid Stimulating Hormone (TSH)
Tri-iodothyronine (T3), Free, Serum
Thyroxine (T4), Free, Direct, Serum
Purpose of the TSH test
To meassure the level of TSH in blood in order to diagnose thyroid disorders and to monitor treatment of hypothyroidism and hyperthyroidism. The TSH test is often chosen for evaluating thyroid function and/or symptoms of hyper- or hypothyroidism.
TSH testing helps in:
• diagnose a thyroid disorder in a person with symptoms
• screen newborns for an underactive thyroid
• monitor thyroid replacement therapy in people with hypothyroidism
• diagnose and monitor female infertility problems
• help evaluate the function of the pituitary gland
• screen adults for thyroid disorders
Purpose of the Tri-iodothyronine (T3), Free, Serum test
To measure the level of free T3 hormone in the blood in order to detect problems of hyperthyroidism or hypothyroidism. A T3 test helps to see whether the thyroid is functioning properly. It is mainly used to help diagnose hyperthyroidism. The T3 test is usually following an abnormal TSH and T4 test. T3 testing may be ordered along with thyroid antibodies to help diagnose Graves' disease, an autoimmune disorder that is the most common cause of hyperthyroidism.The T3 test may be ordered at intervals to monitor a known thyroid condition and to help monitor the effectiveness of treatment for hyperthyroidism.
Purpose of the Thyroxine (T4), Free, Direct, Serum test
Thyroxine (T4) test is done in order to check the levels of this hormone in blood in order to help diagnose thyroid disorders such as hyperthyroidism and hypothyroidism. Also this test is done in order to check how well treatment for thyroid disease is working. Finally newborns are screened with test in order to detect congenite diseases such an underactive thyroid.