Well, the purrs must have worked because Vino came home this evening.
Dennis and I went in this morning on my way to work.  I had to go to
work after 10 min, but Dennis stayed on for about an hour.
This afternoon, Dennis went back in to see how the results of the
bloodwork had turned out.  Good news there, his kidneys didn't sustain
any permanent damage, so we are very relieved about that.  He had very
high levels of some sort of stress hormone and the vet thought that this
is probably due to being at the vet in the first place.  So it was
decided that he would do better at home.
Dennis couldn't get home with Vino because he had walked there (I was at
work with the car) and tried to get a taxi but no taxies would take a
cat.  So the receptionist from the vet ended up driving Dennis and Vino
home, which was very nice of her.  Unfortunately Vino peed in his
carrier on the way home, but Dennis thinks it all stayed in the carrier
and didn't get on her car.
When I got home from work, Vino was gingerly walking around and he peed
in his litterbox about 6 times.  The vet said that he was going to have
the urge to pee a lot due to having the catheter in for so long.  Then
Vino had a little poop.  We celebrated :-)
Now he is sacked out on the couch next to Dennis.  He is taking up 75%
of our large 3 seater sofa and Dennis is squished into the corner.  I am
relegated to the loveseat by myself.  Ahhh, whatever makes the cat
happy!
He still hasn't eaten and has puked up a little bile.  We are to just
feed him regular Iams until he starts to eat properly again, then switch
to the s/d or c/d or whatever.  I hope he starts to eat soon.  He is
also on antibiotics and this urine acidifier.  The vet said that it
could be that the acid urine med might be making him feel sick too, so
we'll have to see how that goes.  But hopefully just being home and
relaxing will make him want to eat again and keep it down.
The vet was really great and helpful and she kept the bill down to just
over $500, so we are very grateful for that.  I feel that even though he
doesn't show it, Vino gets quite stressed about going anywhere in his
carrier.  Probably due to the big move.  So I hope I won't have to take
him anywhere for a long, long time.
I just want to thank everyone for your purrs and supportive messages.
It really made me feel better and I'm sure it helped Vino pull through.
Y'all are the greatest :-)