my cat went into kidney failure in May 2012. since then she has been on amphgel and I do sub q fliuds every night. She has been doing well up to a couple of days ago. she started acting like she wasnt feeling good. just out there. when I picked her up to take her to the vet she was laying in her pee. Took her to the vet. Thinking that she her kidneys were shutting down. Had the test done and it said her kidneys were in the normal range 2.3. two weeeks ago it was 3. Month proir to that 3.8. She was given a shot of B12 and some antibiotics. has a slight fever and infection according to her blood count. Yesterday she ate alittle and drank a little. But is just laying around. the vet cant seem to tell me anything. She is 19. She was doing so well just a few days ago. How long does it take antibiotics to work? I am not sure what else to do for her. View Thread