A 28-year-old male was cutting limbs from a tree when he lost his footing and fell approximately 20 feet. He is unresponsive and breathing shallowly at 28 times per minute. His radial pulse is weak and thready, and his skin is cool to the touch. Emergency Medical Responders (EMRs) have placed him on a nonrebreather face mask and are holding manual in-line cervical spine stabilization. Based on these assessment findings, which one of the following instructions would you provide to the EMRs?