Well, they checked for everything, including Fatty Liver Disease, and apparently it's just a virus they can't identify.
I was so hoping (and expecting) Gary and I and the Vet would compromise and bring Tuxedo home yesterday.... but he was doing OK, not great - eating, but still needed subcutaneous hydration. So they were worried that he might still be infectious, and none of us want the other kitties to get sick when we bring him home.
SO..... today he was eating AND drinking (YAY!!!!!!!!!!!), and it looks like we'll be picking him up tomorrow morning.
I'm glad he's been getting the medical attention, but he needs TLC!!!!!
Gary and I are both so excited about bringing him home. It was such an agonizing decision, and now that we've made it, we just want to bring him home.