05-22-2008, 06:58 AM
A comatose patient is being evaluated by caloric stimulation of the vestibular apparatus.
Cold-water irrigation of the right external auditory canal leads to deviation of both eyes to the right for 2 min, followed by a slow drift back to the midline. This finding is most consistent
with a lesion in the
A) right labyrinth
B) midbrain
C) medulla
D) pons
E) cerebral hemispheres
Cold-water irrigation of the right external auditory canal leads to deviation of both eyes to the right for 2 min, followed by a slow drift back to the midline. This finding is most consistent
with a lesion in the
A) right labyrinth
B) midbrain
C) medulla
D) pons
E) cerebral hemispheres