Case Presentation: A 56-year-old M was admitted in Rhode Island with abdominal pain, malaise, and copious loose, bloody stools for 9 days after recurrent ED and outpatient visits for the same symptoms. His diarrhea had worsened despite outpatient amoxicillin-clavulanate, and he was sent back to the ED by GI due to hyponatremia (Na 129) and [...]