Your patient is a 16-year-old centerfielder on his high school baseball team. He was injured when he and the left fielder collided trying to catch a fly ball. He is disoriented and is unable to tell you what happened. His vital signs are pulse 88, blood pressure 132/86, respiratory rate 16, and pupils equal. As you assess his head, you do not see any cuts or bleeding, but you feel a spongy,

depressed area over his left ear. You should suspect a(n):

A) direct injury. B) skull injury. C) closed head injury. D) open head injury.

D