Thyroid-Stimulating Hormone (TSH), T3, T4
TSH (thyroid-stimulating hormone, thyrotropin) blood test which screens for and diagnoses thyroid disorders; monitors treatment of hypothyroidism/hyperthyroidism.
T3 and T4 are hormones produced by the thyroid gland . The thyroid gland is found in the neck, in front of the windpipe. T3 makes up less than 10% of what we call thyroid hormone, while T4 makes up the rest. T3, however, is about four times as strong as T4, and is thought to cause most, if not all, the effects of thyroid hormones.
Thyroid hormones help regulate the body’s metabolism (how the body functions) and are also related to fertility.