The nurse is caring for a client following craniotomy for removal of an acoustic neuroma. Assessment of which cranial nerve would identify a complication specifically associated with this surgery?

Cranial nerve I, olfactoryCranial nerve IV, trochlearCranial nerve III, oculomotor Cran ial n erve VII, facial nerve

Explanation.

An acoustic neuroma (or vestibular schwannoma) is a unilateral benign tumor that occurs where the vestibulocochlear or acoustic nerve (cranial nerve VIII) enters the internal auditory canal. It is important that an early diagnosis be made because the tumor can compress the trigeminal and facial nerves and arteries within the internal auditory canal. Treatment for acoustic neuroma is surgical removal via a craniotomy. Assessment of the trigeminal and facial nerves is important. Extreme care is taken to preserve remaining hearing and preserve the function of the facial nerve. Acoustic neuromas rarely recur following surgical removal.