... 48 sedatives 53,56ancillary staff 2anesthesia 45 , 46 ,47 systemic 56anesthesiologists 46 consultation 50–1anxiety 45 , 46 ,52–3colonoscopy 140 anxiolysis 47 , 48 , 52–3aortoesophageal fistula 108aphthous ... reactions 48 –9care after 52chromoendoscopy 188colonoscopy 139 40 complications 48 –9, 50conscious 47 , 56,57deep 47 , 51, 56, 57, 119diagnostic procedures 46 –57documentation 50, 52equipment 49 goals ... channels 39 ,41 –2air/water valve 14 15airway obstruction, upper 50alcohol flush 41 Alfa loop 138,153Alfa maneuver 147 ampulla 143 anal canal 142 –3anal fissures 159analgesia 46 –7, 48 sedatives...