I was supposed to have an ablation today. After I was prepped a nurse came down from the cath lab and told me one of the labs was down and my case was moved from 2nd to 4th. She further toldme that I would be waitinf until 6pm or later dor this. I am very frustrated. Is it common for a lad to fo down? I've had 5 prior a lations and never had this happen.