Outpatients frequently will lookup medflight companies with the help of the many medical directories available online. As these men or women do not want to be moved by your usual airlines ; because they call for a BLS medical staff and nurse and/or special medical care , medevac specialists must be coordinated with. Ever so often there are men or women that have need of a flight paramedic , and critical care units while they travel. Patients who retain the help of medical flight companies are unable to be taken on your usual airliners . That is generally when these cases need a top notch EMT and flight paramedic or advanced life support. There are air ambulance fleets that can help those in need all over the US.