an​ 8-year-old child was chasing his dog when the boy ran out into the street and was struck by a car. he is responsive to verbal stimuli and has an unstable pelvis and a bruise to the side of his face. his airway is open and his breathing is rapid and shallow. his radial pulse is rapid and weak and his skin is​ cool, moist, and diaphoretic. the patient also has abrasions to his back after being thrown by the car onto the pavement. based on these assessment​ findings, the emt would treat the patient for which​ life-threatening condition?