So… Teddy’s being “off” and his falling down were caused by low (very low) sodium. He also had low potassium.
He currently gets enough salt according to some measures, and though he’s flirted with low sodium before, it’s always ended up ok. There was some concern that his kidney, much like his old kidney, was not hanging into sodium. However, urine tests showed us that he wasn’t peeing out sodium. (this was great news.)
He just needs more sodium. That’s easy. We had to stay just long enough to make sure that the extra sodium was doing the trick.
Then Saturday labs came back and his sodium was just as low as it was at admission! Argh! We repeated them, and they were fine. So we came home!
15 total pokes during 3 days. Ugh. And more labs Monday.