This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: All India exam, Subject name: Physiology
[{'content': 'A 50 years old male presents with severe refractory hypeension, weakness, muscle cramps and hypokalemia, the most likely diagnosis is \nSelect and explain. \nA. Hypoaldosteronism, B. Hyperaldosteronism, C. Cushing syndrome, D. Pheochromocytoma', 'role': 'user'}, {'content': "Answer: A \nExplanation: Manifestation of Conn's Syndrome (Primary Hyperaldosteronism) Muscle weakness and fatigue (due to hypokalemia) Hypeension without edema Polyuria and polydipsia Investigations Hypokalemia * Metabolic alkalosis * Hypernatremia * Increased Aldosterone * Low renin", 'role': 'assistant'}]