1. Q ANSWER: A 16-year-old male presents with fever and right lower quadrant discomfort. He complains of nausea and has had one episode of vomiting, but he denies any diarrhea. His vital signs are as follows: temperature 101.9°F, pulse 100 bpm, respirations 16 breaths per minute, and blood pressure 110/70 mm Hg. A complete blood count reveals a WBC count of 19,100 cells/µL. The AGACNP expects that physical examination will reveal: A. + Murphy’s sign B. + Chvostek’s sign C. + McBurney’s sign D. + Kernig’s sign 2. Q ANSWER: Myasthenia gravis is best described as: A. An imbalance of dopamine and acetylcholine in the basal ganglia Demyelination of peripheral ascending nerves B. Demyelination in the central nervous system C. An autoimmune disorder characterized by decreased neuromuscular activation 3. Q ANSWER: