The team includes a physician, nurse and respiratory therapist. All members are required to take a two week course to familiarize them with the equipment and the effects of altitude and other stresses of flight on the patient. At most the team can take care of 3 ventilated or 6 nonventilated patients. The physician role can be filled with a physician familiar with critical care like pulmonologists, emergency medicine physicians, anesthesiologists or surgeons. At times with the high demand for teams this role has also been filled with internists or family practice physicians after completion of the two week course. The nurse has to have 2 years of critical care experience before being qualified for the team.