I'm going to have to log off soon, so in case we miss each other....
I don't want to scare you, but in case no one is around later, I want to make sure you have the info you might need at the vet: Ketones quickly develop into DKA which can lead to a long and expensive hospitalization, or even worse. The sooner they are caught and treated, the better the chances of recovery. When you get to the vet, insist on a ketone test. Most vets will know that straight away, but in case your vet doesn't, I want to make sure you know to insist. If ketones are present, the treatment will likely require Missy to stay overnight for fluids, fast acting insulin, and so that they can find the triggering cause - ketones usually develop with not enough insulin, not enough calories (that's why it's so concerning when a cat won't eat), and an infection or inflammation. It can be as simple as an inflammed tooth, or a bug bite, or something like a UTI. Again, the sooner they catch it and start treatment, the better chance that she can avoid a long hospitalization, so don't let them send you home without doing the test to be sure she's ketone free.
