Oh no! You must be frantically worried and upset. It's amazing how much sub-q fluids can help cats; I have them on hand at home all the time and not just for the one CRF foster cat I have. If they can just pull her through the URI, the renal failure can be dealt with. I have a seriously ill CRF cat right now and just put her on Epogen injections which have obviously helped her already. Those, plus twice daily fluids and forced AD feedings have brought her back from near collapse.
I will be thinking positive thoughts for Emily.