After the emergency department has received a status report on the following clients who have been admitted with head injuries, which client would the nurse assess first?
1) A 20-year-old client whose cranial x-ray shows a linear skull fracture.
2) A 30-year-old client who has an initial Glasgow Coma Scale score of 15.
3) A 50-year-old client whose right pupil is dilated and unresponsive to light.
4) A 40-year-old client who lost consciousness for a few seconds after a fall.