Can anyone tell me specifically what test I need to ask the Dr to do on my niece. She is undiagnosed and her health is fading fast. I'm 95% sure she has a endocrine issue so I need to be prepared when I talk to the Dr and that includes knowing exactly what tests a 14 year old girl should take to to rule out or in thyroid related issues. Anything you can think of would greatly be be appreciated. Thankyou.... please be very specific&'