I went online and opened the lab results from work and Daisy's kidneys are going bad , when they were perfect two and a half months ago
Don't rule out an infection! Buzz and Bailey were diagnosed with renal failure--both of them had an infection!
Also, tripe is a fabulous source of low phos protein. It is a staple of Buzz's maintenance diet and it was his only protein source while we worked to get his kidney values back to normal (I fed it with either Sojos or HK base foods).