Justin, thanks for your detailed post on the thyroid. I pulled the print out from my most recent blood work from my files. I get the thyroid panel done as I have been on medication for 20+ years. I found that my family practitioner DOES include the T-3 uptake and Free Thyroxine index tests. Fortunately, these 2 values are close to being mid range of "normal" parameters. I never would have thought to look at the T-3...I've always watched the TSH. Betty Ann mailto:[log in to unmask] "In a cat's eyes, all things belong to cats." English Proverb