Sam, a 16-year-old snowboarder, is brought to your office by his mother because she is worried he might have a concussion.
Sam fell yesterday on the slopes and hit the back of his head. He was wearing his helmet. He was a little stunned, but did not lose consciousness. He had a mild headache and some dizziness but he kept snowboarding. This morning he still has a headache, mild nausea, and is sensitive to light and noise.