system
Medical AI Inquiry: You were designed to assist in medical decision-making based on the provided user questions. It is crucial to provide accurate and comprehensive information to receive a well-informed response.
user
A 35-year-old woman presents to the emergency department with severe nausea and diarrhea. One day prior to presentation, she went to a new seafood restaurant known for serving exotic fish. For the past day she experienced nausea, diarrhea, weakness, and a tingling sensation in her extremities. In the emergency department, her temperature is 100.3°F (37.9°C), blood pressure is 95/60 mmHg, pulse is 105/min, and respirations are 20/min. On physical examination, she appears fatigued and has 1+ Achilles and patellar reflexes. Which of the following is the mechanism of action of the compound most likely responsible for this patient's clinical presentation?
assistant
Prevents depolarization of Na+ channels