It is provided as a service to our taxpayers, the community and the public abroad to assist in obtaining property ownership information, assessment roll data, building sketches, sales data, parcel ownership maps, aerials and other data on properties within Citrus County, Florida.
Thyroid Hormone Tests. Guide. Thyroid hormone tests are blood tests that check how well the thyroid gland is working. The thyroid gland makes hormones that regulate the way the body uses energy. The thyroid gland is a butterfly-shaped gland that lies in front of your windpipe (trachea), just below your voice box (larynx).
Thyroid function tests are used to tell whether your thyroid is working normally. The most common thyroid function tests are: 1  Total, or free T4 (the main thyroid hormone in your blood). 2  TSH (the hormone from the pituitary gland that stimulates the thyroid to produce T4). 3  T3 (also included sometimes).