A 35-year-old woman presents to the emergency department wit…
A 35-year-old woman presents to the emergency department with complaints of fatigue, weight loss, and abdominal pain for the past few weeks. She also reports feeling dizzy when standing up. Her blood pressure is 90/60 mmHg, and she appears tanned despite minimal sun exposure. Laboratory tests reveal hyponatremia and hyperkalemia. Which morning lab would be expected given the most likely diagnosis for this patient?