I used to work at the Cleveland Clinic from 2005-2006. Our CTICU had a CNS in it from 7 AM to about 4 PM. He assisted with procedures, made rounds in the AM with anesthesia and CT surgery. He also dealt with issues that arose suddenly, such as low BP, increases CT output, low urine....things of that nature. It was a very involved job and very busy....especially when you have to deal with 18 fresh hearts a day.