Not all icu's use swans, which is where u would get ur wedge pressure from. I work in neuro/trauma icu and we never use swans. We only do Aline's and cvp for other cardiac monitoring. Occasionally we do transvenous pacing. So if u don't know something just say so...someone will hopefully take that as a teaching opportunity. Does ur Ccu or cv icu use swans? If so...one day just go over there and ask to be taught and get hands on experience with them