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: Pediatrics
[{'content': 'Which is seen in nephrotic syndrome – \nSelect and explain. \nA. Low serum calcium, B. Raised AT–III, C. Low lipid, D. Platelet activation', 'role': 'user'}, {'content': 'Answer: A \nExplanation: In nephrotic syndrome there is hypocalcaemia and secondary hyperparathyroidism as a consequence of loss of cholecalciferol binding protein.\nSecondary hyperparathyroidism causes hypophosphatemia by increasing renal phosphate excretion.', 'role': 'assistant'}]