Review Question - QID 109269

A 41-year-old man presents to the emergency room with sudden onset of blurry vision one hour ago. He states that he was resting at home when he noticed he had difficulty reading. Currently, he is also starting to see double, and is seeing two images on top of each other. Earlier today, he felt ill with nausea, vomiting, and watery diarrhea, which he attributed to food he had eaten at a picnic the day before. When asked which foods he ate, he lists potato salad, a hamburger, deviled eggs, and pickles made b...