Outpatients who cannot go on regular airline companies .. because they are not in stable situation receive help from jet ambulance businesses. Case patients are dependent on a respiratory therapist and/or advanced life support …. and these are the individuals who cannot be transported by everyday airlines. As these cases are in need of a respiratory therapist , medevac services have to be hired. Most air ambulance services providence rhode island are privately run crews. air ambulance services providence rhode island are found by customers when they do not have the help of a case worker. In the event the patients require medical aid, there are businesses that are there to help patients.