Question: A 60-year-old man sought care for diarrhea with mucus, fever, dehydration, and weight loss after eating raw fish. He presented sepsis colonic distension on a computed tomography scan. Laboratory results were as follows: creatinine 1.2 mg/dL, magnesium potassium 3.1 albumin 1.4 sodium 131 bicarbonate 15.9 nmol/L. After 10 days of cefepime, his resolved. persisted watery diarrhea, howev...