second. &nbsp. How to use the Elapsed Time Calculator: Set each date to a time in the past or the future, or NOW. (Click on NOW and change to Choose a date if you want to set both dates.) Click and type or use the arrows to change the year.
A TSH test measures the amount of thyroid stimulating hormone (TSH) in your blood. TSH is produced by the pituitary gland and tells the thyroid gland to make and release the hormones thyroxine (T4) and triiodothyronine (T3). See also: T3 test.
TSH, also called thyroid-stimulating hormone, is a signal produced by the pituitary gland in the brain. It sends out the message: âHey, make more thyroid hormones!â When TSH is elevated, this can indicate a thyroid disorder. The most common thyroid disorders are: 1  Hypothyroidism, the underproduction of thyroid hormones.