This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: None, Subject name: Medicine
[{'content': 'NOT a feature of primary hyperaldosteronism is \nSelect and explain. \nA. Pedal edema, B. Diastolic hypeension, C. Polyuria, D. Hypokalemia', 'role': 'user'}, {'content': 'Answer: A \nExplanation: Answer is A (Pedal edema): `Patients with primary aldosteronism (Conn\'s syndrome) characteristically do not have edema since they exhibit an "escape" phenomenon from the sodium retaining aspects of mineralocoicoids\'', 'role': 'assistant'}]