Answer to Question 1
Correct Answer: 1
The facial nerve is assessed by asking the patient to blow out the cheeks, wrinkle the forehead, frown, wink, and close both eyes tightly. The other options assess coordination, the trapezius muscle and muscle strength, and motion of the neck.
Answer to Question 2
Correct Answer: 1
Laboratory results consistent with a diagnosis of myasthenia gravis include a positive edrophonium chloride (Tensilon) test, delayed nerve transmission during electromyography, and elevated levels of serum acetylcholine receptor antibodies. There are no diagnostic tests for Parkinson disease, amyotrophic lateral sclerosis, or Guillain-Barr syndrome.