It HAS brought about good results in my own dog now, of course, she had very early-stage Chronic
Kidney Failure (
and not Acute Kidney Failure) so the circumstances are different, I realize.
The canned version would be easy to let down with water, to make syringe-feeding easier.
Depending on what you feel about what your current vet says to you about her condition (listen carefully, because he may be quite wise about her situation.....