Case Presentation: A 70-year-old woman visiting from India with history of hypothyroidism and adrenal insufficiency presented with four days of profuse diarrhea and fever. She was admitted for sepsis secondary to Rotavirus gastroenteritis with initial sodium level 132 (135-145 mmol/L). On day 2 of hospitalization, sepsis resolved with isotonic fluids and stress dose steroids, but [...]