My puli, Miss Emma, is having some issues, and while I trust her vet, I have some questions. When we originally went to the vet with problems on July 2nd, they tested her blood at the office. Her BUN was 127, ALT was 527, and her creatinine was 7.6. We were sent to the emergency animal clinic to have her started on an aggressive diuresis treatment for the holiday weekend. She had a urinalysis run at the emergency clinic as well, and I was told that she had a horrible UTI (for which she didn't give symptoms of until the day before). On July 5th, the last blood test at the emergency animal clinic showed her BUN to be 33.7, creatinine at 3.6, and ALT at 282. The morning of July 6th, Emma was transferred back to our regular vet clinic and continued on her diuresis for the day with another blood test at the end of the day. Her BUN dropped to 28, but her creatinine reading went up to 5.2 and her ALT was in the 290's. I've been giving Emma about 200 mg of fluid under her skin each day, and has been put on a kidney prescription diet. She's still not eating much, but behavior is normal as is her drinking. Today (July 9th) she had her blood tested again, and the creatinine is at 5.5, but BUN is 28 and ALT is 194.
My question is how/why did her creatinine jump from 3.6 to 5.5 even with the diuresis treatment continuing on Monday? Is it at all possible there's something going on with the testing? I'm really concerned, and the vet seems to be concerned about her creatinine number. They want to run another urinalysis and are talking ultrasounds. Why is her creatinine still up but her other levels down?