Difficulty: Medium
Average Score: 65%
Simulated
The nurse prepares to assess the patient's cranial nerves. Which tool is necessary to assess cranial nerve (CN) III (oculomotor)?
Correct answer
B
Rationale
A penlight is used to assess CN III (oculomotor) by evaluating the pupil's response to light and the ability to move the eye, as this nerve controls pupil constriction and most eye movements.