The cases generally search for medical air evacuation businesses with the help of the telephone book. As these case patients are not good to be brought by the commercial airplane charters , medical flight operations are a must. There are individuals who necessitate a nurse , and a heart monitor/defibrulator when they fly on a airline. Outpatients who use air evac operations are unable to go by everyday commercial airline services — because they would be designated as being not in non life and death circumstance. Where bedridden men or women would be designated as being extremely injured although they are in medically self sustaining circumstance, there are outfits which facilitate the transfer of patients