Unsure

My dog was put down this morning, the vet said he had kidney failure and that there was nothing they could do. He was fine until 2 days ago he would chug water then vomit and wouldn’t eat, we tried antibiotics and he seemed okay but was also very out of it. They said the kidney failure affected the other organs. I guess my point for this post is, was there any way he could’ve lived ? I feel like it was too sudden and he was healthy not that long ago.