There is no way to know. It progresses slowly in some cats, quicker in others. That Buddy is eating well and not in any distress is a good sign. I wish there were a more definitive answer but there just isn't any way to know.
what diet are you feeding kitty?
be sure its a good quality can food without grains. and I would still add a sprinkle of extra TAURINE(an animo acid) into the food, talk to your Vet about this.
good luck hon, I hope he is with you for a long time yet.....but we can't really give you a time line here....♥
I mentioned in another thread that my wife and I learned from the vet how to give our well-remembered kitty, Calamity Jane Grey, subcutaneous fluids as her kidney function diminished.
She was almost 19 when we started and finally a pair of strokes got her at the age of 21 years 4 months. 2 days before the 1st stroke, Cammie, who was harness trained, took Anita on a walk for about 2 city blocks and back again to the house.
We used Ringer's lactate solution from an IV bag (purchased along with thin gauge needles from the vet), giving her 50 - 75 cc's 2 - 3 times a week. He showed us how to place the needle in the loose skin between her shoulders...
You might want to consider consulting with your vet about this therepy.
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