We are expanding our ambulatory surgery center to include a separate GI wing instead of incorporating it into the surgical areas as we do now. It will have 3 outfitted procedure rooms with the potential for 3 additional rooms.We plan to start with 30-45 cases per day. The patient will be admitted to a room that will serve as their pre and post procedure room. There will be 11 of these. We won't be doing ERCP, motility or pH studies. We will be doing colonoscopy, EGD with therapeutic intervention. We will do paracentesis rarely. Our state allows an RN and a tech in the room for procedures. We currently had 2 RN's because we were following AORN guidelines. We will be switching to SGNA in this area. We are a for profit facility. We use conscious sedation for procedures. Any input on safe yet cost efficient staffing? Pre/Post areas are what I'm having some difficulty with. Anyone using PCA's or associates in these areas? How many RN's to patient ratio?