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A nurse is assessing a client's cranial nerves as part of a neurological examination. Which action should the nurse take to assess cranial nerve II?

A.

Assess visual acuity

B.

Elicit gag reflex

C.

Checking for pupillary response to light

D.

Observing for facial symmetry

Answer and Explanation

The Correct Answer is A

A. Assessing visual acuity directly tests cranial nerve II (the optic nerve), which is responsible for vision.  

 

B. Eliciting the gag reflex tests cranial nerves IX (glossopharyngeal) and X (vagus), not cranial nerve II.  

 

C. Checking for pupillary response to light primarily assesses the function of cranial nerve II but is more associated with cranial nerve III (oculomotor) since it involves the constriction of the pupil. While relevant, it is not the best standalone action for assessing cranial nerve II specifically.  

 

D. Observing for facial symmetry is associated with cranial nerve VII (facial nerve), not cranial nerve II.


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View Related questions

Correct Answer is D

Explanation

A. Bradypnea (slow breathing) may occur in various conditions but is not a defining characteristic of cyanosis.

B. A pale reddish color in the skin is not consistent with cyanosis, which indicates a lack of oxygen in the blood.

C. Somnolence (drowsiness) may be present in some patients, but it is not a specific finding related to cyanosis.

D. Mottled blue color in the skin is a classic sign of cyanosis, indicating inadequate oxygenation of the blood, especially in the extremities or areas with poor circulation.

Correct Answer is B

Explanation

A. Early ventricular repolarization is represented by the T wave, not the P wave.

B. The P wave represents atrial depolarization, which is the electrical activity that triggers the contraction of the atria.

C. Slow repolarization of ventricular Purkinje fibers is represented by the T wave, not the P wave.

D. Ventricular depolarization is represented by the QRS complex, not the P wave.

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