Snowy's tests didnt include thyroid, but she always had to be prestarved - while she only had a liver condition, she did have her kidneys checked at the same time. I also seem to remember one blood test where I was asked if they were, as there were two boxes on the form (I have ones done that are sent to the lab, as they cover more than the vets test), one for pre-starved, and one for not.