Difficulty: Medium
Average Score: 94%
Simulated
A nurse is assessing a client's cranial nerves as part of a neurological examination. Which of the following actions should the nurse take to assess cranial nerve III?
Correct answer
C
Rationale
The correct answer is C: Checking the pupillary response to light. Cranial nerve III, also known as the oculomotor nerve, controls the pupillary constriction in response to light. By shining a light into the client's eyes and observing the pupillary response, the nurse can assess the function of cranial nerve III. This test helps determine if the nerve is functioning properly and if there are any abnormalities present.
Choices A, B, and D are incorrect because they do not specifically assess cranial nerve III. Testing visual acuity (choice A) is related to cranial nerve II (optic nerve), eliciting the gag reflex (choice B) is related to cranial nerves IX and X, and observing for facial symmetry (choice D) is related to cranial nerve VII (facial nerve).
In summary, checking the pupillary response to light is the correct action to assess cranial nerve III because it directly evaluates the function of this specific cranial nerve.
Choices A, B, and D are incorrect because they do not specifically assess cranial nerve III. Testing visual acuity (choice A) is related to cranial nerve II (optic nerve), eliciting the gag reflex (choice B) is related to cranial nerves IX and X, and observing for facial symmetry (choice D) is related to cranial nerve VII (facial nerve).
In summary, checking the pupillary response to light is the correct action to assess cranial nerve III because it directly evaluates the function of this specific cranial nerve.