A 72-year-old woman presents with confusion and serum sodium…

A 72-year-old woman presents with confusion and serum sodium of 122 mmol/L. She recently started sertraline for depression and is also taking carbamazepine for trigeminal neuralgia. Which of the following medications is most likely responsible for her hyponatremia due to SIADH?

A 76-year-old man with advanced dementia and limited oral in…

A 76-year-old man with advanced dementia and limited oral intake is admitted with confusion, lethargy, and muscle weakness. Laboratory studies reveal a serum sodium of 160 mmol/L. On examination, he is euvolemic. Which of the following is the most appropriate initial management strategy for his hypernatremia?

A 16-year-old patient with newly diagnosed Type I diabetes m…

A 16-year-old patient with newly diagnosed Type I diabetes mellitus presents with weight loss and fatigue despite increased food intake. Lab tests show hyperglycemia and elevated fatty acids in the blood. His liver still synthesizes glycogen after meals, but his skeletal muscle mass is declining, and adipose tissue stores are depleted. Which tissues are unable to store glucose effectively without insulin?