Dandy was doing much better, and then things took a nasty turn. His blood work on Monday was relatively normal for a cat with CRF, and I thought I was going to be able to bring him home today. This morning, he had what the vet described as a "hypoxic episode." It looks like there is some underlying heart problem which has been masked by his kidney medication.
I got to see him this afternoon, and he's in pretty bad shape, although it's hard to say how much of that is residual side effects from this morning's round of meds. I brought over a blanket from his favorite sunny spot, and he seemed to really enjoy the smell of something familiar. The vet thinks I can bring him home tomorrow, although there's no saying how long he'll be with us - maybe a few weeks. In any case, I'm looking forward to getting him back into familiar surroundings for however much time we have left.
Thanks for keeping him in your thoughts.