With TSH the results are opposite of what you'd normally think they mean. High TSH means your thyroid is functioning very slowly. Low TSH means your thyroid is overactive.
A lab result with TSH of zero could mean a couple of things. If you're on thyroid hormone it likely means one of two things:
If you have Hashimoto's Disease it means that you're currently in the hyperthyroid stage of the disease.
For a more complete understanding of your thyroid function you should have the following tests done:
TSH is thyroid stimulating hormone. 9.7 is the concentration of TSH in your blood.
TSH is the thyrotropic hormone or thyroid stimulating hormone which is involved in regulating the growth and activity of the thyroid gland.
Thyroid Stimulating Hormone (TSH) targets TSH receptors primarily in the thyroid gland. TSH fits like a key into the receptors (lock) and turns the thyroid 'on' so it will produce thyroid hormones.
the thyroid
None. TSH is a signal fo rthe thyroid to make and release more thyroid hormone. If the thyroid is removed TSH wil have no effect.
thyroxine is produced in the Thyroid gland
TSH is not a thyroid hormone - it is a pituitary hormone called Thyroid Stimulating Hormone. It's job is to tell the thyroid how much thyroid hormone to produce. This is called a negative feedback system.The thyroid produces hormone.The brain reads that there is insufficient hormone in the bodyThe pituitary gland in the brain produces more TSH that turns the thyroid onMore TSH means the thyroid produces even more thyroid hormone.When there is too much thyroid hormone in the body, the pituitary turns off TSH as the body doesn't need any MORE thyroid hormone.If the brain, pituitary and thyroid are working properly, thyroid hormones T4 and T3 will be high (hypERthyroidism) when TSH is low, and thyroid hormones T4 and T3 will be low (hypOthyroidism) when TSH is high.
Increase in thyroid hormone will lower TSH production, because there is a feedback loop between TSH that stimulates the production of thyroid hormone and the hormone that then will then regulate the stimulation of TSH so that thyroid hormone is not over produced.
The Thyroid Stimulating Hormone or TSH test is used to test problems associated with thyroid disorders
the thyroid stimulating hormone (tsh)..tsh is produced in the anterior pituitary lobe
Thyroid-stimulating hormone (TSH) regulates thyroid function by stimulating the thyroid gland to produce thyroid hormones such as thyroxine (T4) and triiodothyronine (T3). High levels of TSH can indicate an underactive thyroid, while low levels can indicate an overactive thyroid.
The hormone that targets the thyroid gland and triggers the release of thyroid hormone is thyroid-stimulating hormone (TSH). It is produced by the pituitary gland in response to low levels of thyroid hormones in the blood. TSH binds to receptors on the thyroid gland, stimulating it to produce and release thyroid hormones.