Progressive Right Sided Weakness; Which cranial nerve likely affected? - USMLE Forums
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Old 05-01-2012
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Neuro Progressive Right Sided Weakness; Which cranial nerve likely affected?

A 23-year-old male is found at the scene of a motor vehicle accident with bilateral lower extremity fractures. You also note extensive abdominal bruising and scalp lacerations. At the scene, the patient's blood pressure is 80/60 mmHg and his heart rate is 120/min. He is given 2 liters of IV fluids wide open. On the way to the hospital he becomes progressively drowsy, and he develops progressive weakness on the right side of his body. This patient is also likely to show deficits in the functioning of which of the following nerves?

A. Abducens
B. Oculomotor
C. Glossopharyngeal
D. Trigeminal
E. Accessory
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Old 05-01-2012
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oculomotor nerve: the most common nerve after uncal herniation of the brain : )

please correct me if i am wrong!

thank you!
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Old 05-01-2012
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Old 05-01-2012
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Quote:
Originally Posted by chienpolska View Post
oculomotor nerve: the most common nerve after uncal herniation of the brain : )

please correct me if i am wrong!

thank you!
why do you say this is uncal herniation?
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answer. b .
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-B., increase ICP (indicated by cushing reflex) due to hemorrhage & edema, so the 3red cranial is compressed.
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Old 05-02-2012
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What's the most common cranial nerve involved in increased icp? I thought its 6th abducens because of its long course so shouldn't ans be abducens ?
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