Thyroid-Stimulating Hormone (TSH). Guide. A thyroid-stimulating hormone (TSH) blood test is used to check for thyroid gland problems. TSH is produced when the hypothalamus releases a substance called thyrotropin-releasing hormone (TRH). TRH then triggers the pituitary gland to release TSH.
A Raven is black but depending on which way the light hits it they change to other colors like bluish, dark red, or greenish. There are white Ravens but are not albino.
1 True Colors (That's So Raven), an episode from season 3 of That's So Raven. 2  Star Wars Republic Commando: True Colors. 3  True Colors Series, a series of novels by Melody Carlson.  Color of water (true color), a scale used to determine the color of water after it has been filtered.