05-12-2010, 06:16 PM
A 10-year-old boy is brought to the emergency department by his parents 1 hour after he fell down the steps in the middle of the night. His mother reports that he has a history of wandering around the house at night, but he never seems to recall it afterwards. During these episodes, he does not scream or appear frightened. He is otherwise healthy, and he takes no medications. Physical examination shows a 2-cm area of edema and ecchymosis over the forehead. Polysomnography is most likely to show an abnormality in which of the following stages of sleep?
A. Stage 1
B. Stage 2
C. Slow-wave (delta)
D. REM
A. Stage 1
B. Stage 2
C. Slow-wave (delta)
D. REM