Patients who retain the help of non emergency air ambulance services need advanced life support , and/or a BLS flight nurse. Case patients require a flight doctor when they travel. As they need a complete ICU/CCU setup , and/or a paramedic , air ambulance crews have to be coordinated with. Most air ambulances are business organisations that are privately run. Elderly patients occasionally will search for med flight crews with a case work specialist. There generally are medevac services who are there to help patients around the globe.