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The nurse is testing the function of CN XI. Which statement best describes the response the nurse should expect if this nerve is intact? The patient.

A.

Demonstrates the ability to hear normal conversation.

B.

Moves the head and shoulders against resistance with equal strength

C.

Follows an object with his or her eyes without nystagmus or strālismus

D.

Sticks out the tongue midline without tremors or deviation.

Answer and Explanation

The Correct Answer is B

A.    This tests cranial nerve VIII (vestibulocochlear), not cranial nerve XI. 
B.    Moves the head and shoulders against resistance with equal strength. Cranial nerve XI (accessory nerve) innervates the sternocleidomastoid and trapezius muscles. The expected response would be equal strength when the patient moves their head and shoulders against resistance. 
C.    Follows an object with his or her eyes without nystagmus or strabismus. This describes the function of cranial nerve II (optic) or cranial nerve III (oculomotor), not cranial nerve XI. 
D.    Sticks out the tongue midline without tremors or deviation. This tests cranial nerve XII (hypoglossal), not cranial nerve XI. 
 


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Related Questions

Correct Answer is A

Explanation

A. Severe nystagmus is often associated with neurological disorders, particularly those affecting the cerebellum or brainstem.
B. is a sign that the patient is nervous about the examination. Nervousness typically doesn’t cause severe, persistent nystagmus.
C. Indicates a visual problem, and a referral to an ophthalmologist is indicated. While nystagmus affects vision, it is usually neurologically based, requiring a neurological assessment rather than a referral to an ophthalmologist.
D. Nystagmus is not typically normal, especially when it is severe and persistent. It warrants further investigation.

Correct Answer is B

Explanation

A. This tests cranial nerve VIII (vestibulocochlear), not cranial nerve XI.
B. Moves the head and shoulders against resistance with equal strength. Cranial nerve XI (accessory nerve) innervates the sternocleidomastoid and trapezius muscles. The expected response would be equal strength when the patient moves their head and shoulders against resistance.
C. Follows an object with his or her eyes without nystagmus or strabismus. This describes the function of cranial nerve II (optic) or cranial nerve III (oculomotor), not cranial nerve XI.
D. Sticks out the tongue midline without tremors or deviation. This tests cranial nerve XII (hypoglossal), not cranial nerve XI.

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