check this out ;
http://en.wikipedia.org/wiki/Thyroid-stimulating_hormone#Diagnostic_use
http://www.ehow.com/facts_5553319_normal-range-tsh-level.html
thank you 6hashi,but these pages didn't answer my questions.
the second does !
"Children who have not yet reached puberty have TSH levels of between 0.6 to 5.5 uU/mL of blood serum"
what about the other hormones,ft3,ft4?and what happens if someone in the age of 2 has low ft3 and normal tsh and ft4.
I'm surprised that your pediatric endo. would even test for freet3? Most just assume that it magically converts but will not double check ( must be against some oath they took at their t4 supported medical school) Ha! My daughter was born without a thyroid gland in 2000. Does your child have a thyroid gland?