Final answer:
The certification not typically required for flight nurses is the Flight Surgeon designation, as this pertains to physicians. Flight nurses are instead expected to have certifications related to trauma and emergency nursing.
Step-by-step explanation:
Among the certifications listed for flight nurses, the one that is not expected to be held by flight nurses is the Flight Surgeon designation. The Flight Surgeon designation is typically for physicians who specialize in the medical certification and care of aviators, astronauts, and aircrew. Instead, flight nurses are expected to hold certifications more closely aligned with emergency and trauma nursing care, such as the Trauma Nurse Core Curriculum (TNCC), Pre-hospital Trauma Life Support (PHTLS), and Basic Trauma and Life Support (BTLS) certifications. These certifications help prepare nurses for the challenges of providing critical care in the air when transporting patients.