Why Call The Helicopter?. Access to interventions, equipment not available from ground unit. (Be sure this is true before calling for this reason.)Access to remote areasRapid patient transport.. Think of it as an ambulance that goes 200 mph in a straight line.. Why Call The Helicopter?. Trauma Score <12Glasgow Score<10Penetrating trauma to head or torsoInjuries producing paralysis, lateralizing signsAmputations, except digits>2 Long bone fractures.