Final answer:
If you suspect a head, neck, or spinal injury, you should have the person remain in position until EMS arrive to avoid further injury or complications.
Step-by-step explanation:
If you suspect that someone has a head, neck, or spinal injury, the correct course of action is to have the person remain in position until EMS (Emergency Medical Services) arrive.
Moving the person could worsen their condition and lead to further injury or complications. It is important to keep the person very still and avoid any movements that may cause their head, neck, or spine to move. If you suspect a head, neck, or spinal injury, you should have the person remain in position until EMS arrive to avoid further injury or complications.