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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

pons/medulla?

???????

I'd say pons...

Can you explain plz, is it a boring post, so many views and nobody tried beside zealot and sam7860.

pons

real tough....right vestibular nucleus is involved. So lesion is in pons.

correct me if i am wrong.

okt3 this is not boring .definitely HY for real exam ..............

Thanks sunshine and others for trying, I had a qs about caloric test and Rinne in my exam, you are absolutly right it is HY, that is the reason I am sharing.

Try again, pon is not the given answer.

GL

why wouldnt it be the midbrain?