A21-year-old male was thrown over the handlebars of his motorcycle when he rear-ended a car that was stopped at a red light. he was wearing a helmet, which he removed prior to your arrival. he is conscious, but restless, and has closed deformities to both of his femurs. his skin is pale, his heart rate is rapid and weak, and his respirations are rapid and shallow. in addition to applying high-flow oxygen and protecting his spine, you should: