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
Which is seen in nephrotic syndrome – 
Select and explain. 
A. Low serum calcium, B. Raised AT–III, C. Low lipid, D. Platelet activation
A: Low serum calcium
Answer: A: Low serum calcium 
Explanation: In nephrotic syndrome there is hypocalcaemia and secondary hyperparathyroidism as a consequence of loss of cholecalciferol binding protein.
Secondary hyperparathyroidism causes hypophosphatemia by increasing renal phosphate excretion.