Nursing Process Questions Related

Review Nursing Process Questions related questions and content

When a neurologist asks a patient to smile, which cranial nerve is being tested?

  • A. CN II
  • B. CN X
  • C. CN VII
  • D. CN XI
Correct Answer: C

Rationale: Step-by-step rationale:
1. The cranial nerve responsible for facial expression is CN VII, the facial nerve.
2. When a neurologist asks a patient to smile, they are testing the function of CN VII.
3. CN II (optic nerve) is responsible for vision, not facial expression.
4. CN X (vagus nerve) is responsible for various functions like heart rate and digestion, not facial expression.
5. CN XI (accessory nerve) is responsible for shoulder movement, not facial expression.

Summary:
Testing a patient's ability to smile involves assessing the function of CN VII, the facial nerve. Choices A, B, and D are incorrect as they are associated with different functions and not responsible for controlling facial muscles.