This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Endocrinology and breast, Subject name: Surgery
[{'content': "Conn's syndrome is \nSelect and explain. \nA. Primary hyperaldosteronism, B. Secondary hyperaldosteronism, C. Primary hypoaldosteronism, D. Secondary hypoaldosteronism", 'role': 'user'}, {'content': "Answer: A \nExplanation: Primary hyperaldosteronism (Conn's syndrome ) is defined by hypeension, as a result of hypersecretion of aldosterone. In PHA, plasma renin activity is suppressed.The most frequent cause of Primary hyperaldosteronism is a unilateral adrenocoical adenoma. Apa from hypeension, patients complain of non-specific symptoms: headache, muscle weakness, cramps, neurological events, polyuria, polydypsia, and nocturia.Ref: Bailey and Love 27e pg: 841", 'role': 'assistant'}]