can someone please explain what these results mean ... really confused why I am being put on 60mg of Armour thyroid medication ... any help is appreciated. Thyroid Panel with TSH TSH 1.880 0.450-4.500 Thyroxine ( t 4 ) 6.6 4.5-12.0 T3 uptake 25 24-39 free thyroxine index 1.7 1.2-4.9 TSH, vitamin B12, Triiodothyronine,free,serum TSH 2.780 0.450-4.500 vitamin B-12 603 211-946 Triiodothronine, free, serum 3.1 2.0-4.4