Question about diet for a dog with kidney disease

What about a diet of bread and hot dogs for a dog with renal failure? I am taking care of a 13 year old lab recently diagnosed and was told not to give her anything else. I am very worried as to how to handle this with the owner.

 

Answer from Dr. Gaylord Brown:
The basis for a renal diet is high quality, low protein with the majority of calories coming from carbohydrates. There are commercial products that meet these needs, and there are recipes available on line for homemade diets. A common easy mix is egg and brown rice.