It's called PLE or PLN
http://users.adelphia.net/~lechaun/kidneys.html
She is on predisone every other day and Hills ZD from the vet. She is doing good but has to pee alot from the meds, and her hair is getting thinner with the meds too. The dog is 8-9 yrs old. For treats she gives gentle snackers from the vet also. good luck.