The nurse would expect to assess third nerve palsy in patient with an ischemic stroke involving which artery?
A) Anterior cerebral artery
B) Basilar artery
C) Proximal posterior cerebral artery
D) Distal posterior cerebral artery
C) Proximal posterior cerebral artery
Explanation: A) A stroke involving the anterior cerebral artery may cause paresis and sensory loss of contralateral leg and foot.
B) A stroke involving the basilar artery may cause hemiparesis or quadriparesis, hemi or crossed sensory loss, nystagmus, vertigo, diplopia, gaze palsies, dysarthria, ipsilateral cerebellar ataxia, Horner syndrome, and coma.
C) A stroke involving the proximal posterior cerebral artery may cause contralateral hemiparesis, sensory loss, ataxia, third nerve palsy, vertical gaze palsy, hemiballismus, choreoathetosis, and impaired consciousness.
D) A stroke involving the distal posterior cerebral artery may cause contralateral homonymous hemianopia, dyslexia without agraphia, visual hallucinations and distortions, memory defect, and cortical blindness (if bilateral occlusion).
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