Joan Singapore, International 2/3/2014 12:41:56 AM My dog was 17. He was eating well. I brought him to the vet on By Sun morning, before he could go for hydrotherapy. The vet said his kidneys failed and the BUN was 70. He said my dog should have an IV. By sun morning, he passed on. The vet claimed that my dog was very weak, had heart problems and suffered a heart attack. They supposedly tried to resuscitate my dog twice but his heart gave up. Could you advise if there has been any lapses while they were treating my dog? After the IV, my dog was supposed to return home on sun evening but he passed on.