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 [...]

Case Presentation: A 46-year-old, previously healthy woman of Korean descent initially developed heartburn associated with thirst and frequent urination. Two months later, she presented to the Emergency Department with epigastric pain and persistent thirst. She appeared euvolemic, and her initial workup was notable for a serum sodium (SNa) of 144 mmol/L and urine specific gravity [...]