She may still recover. It does take a long time for recovery from a catastrophe illness. It also sounds as if your vet knows what she is doing. BUN should never be evaluated alone. It should always be evaluated along with the Creatinine levels. She may require months of sub Q fluid therapy, which will act as doggie dialysis. The most important thing is to keep her eating! Eating and the desire to eat is an important prognosticator of whether or not she is capable of recovery. If she does not eat there are appetite stimulants that you can still try for her, such as a very low dose of Mirtazipine, available by prescription from your vet.
Holistic veterinary medicine may help to give your dog a better quality of life and may help to stabilize her blood abnormalities a bit faster. I have personally seen very positive results with adjunctive holistic veterinary medicine for kidney disease. Please research holistic veterinary medicine websites, such as the American Holistic Veterinary Medical Association website, Chi Institute and others.
one more thing...her creatinine and alk phos being elevated...can they come down too?...
thanks so much for your note back ...i really appreciate the helpful suggestions. I will suggest these to my vet and see what he says...He gave her sub q fluids yesterday and she perked up a bit...but this morning she just doesnt want to eat...i suggested megace for a bit longer and he said no because this can bring on diabetes...but shes going back today and ill see what he says...thanks again