Thank you for the prompt reply.
While it is true that a urinary tract infection can precipitate diabetic ketoacidosis (DKA), it is not the only thing that can. Pancreatitis and Cushings disease are other common conditions that can be at fault of triggering DKA. It is not safe to assume that she has a urinary tract infection without evidence of it based on a bacterial culture of the urine. The culture can then insure that the appropriate antibiotic (AB) is prescribed. AB's are not innocuous drugs and should not be given unless needed. They can decrease the appetite of some dogs and lead to other GI signs as well. I would check with your vet first, but perhaps stopping the AB for 24 hours and seeing if that helps with appetite may be prudent.
If she is still not eating, it may be that there is still underlying disease going on. Many dogs with diabetes have concurrent pancreatitis. If so, she may need additional management of that disease. Appetite stimulants are one way, but in some cases, other drugs are needed as well.
As far as diet, if she did have or does have pancreatitis or if her triglycerides are elevated, a low fat prescription diet is indicated. if not, while higher fiber diets like w/d do help with regulation, they are not essential and the most important part of her diet it is that it is a consistent amount and time of the day as much as possible.
Here are a few links you may find useful:
I hope this is helpful. Please let me know if you have ANY other questions. My goal is to give you 100% satisfaction and if you are not yet satisfied, please reply so I can clarify for you.
My posted replies are for general education only and not meant as a diagnosis. Only after a thorough veterinary examination can a diagnosis for your pet be made and specific treatments be advised or medications be prescribed.