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 25-year-old man comes to the physician because of diarrhea, bloating, nausea, and vomiting for the past 3 days. He describes his stool as soft, frothy, and greasy. He denies seeing blood in stool. The patient went on a hiking trip last week and drank fresh water from the stream. Three months ago, he was on vacation with his family for 2 weeks in Brazil, where he tried many traditional dishes. He also had watery diarrhea and stomach cramping for 3 days during his visit there. He has no history of serious illness. He takes no medications. The patient appears dehydrated. His temperature is 37°C (98.6°F), blood pressure is 100/60 mm Hg, pulse is 80/min, and respirations are 12/min. Examination shows dry mucous membranes and diffuse abdominal tenderness. Microscopy of the stool reveals cysts. Which of the following is the most appropriate next step in management?
assistant
Metronidazole therapy