This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: C.V.S., Subject name: Pediatrics
Sustained severe hypertension in children is most commonly suggestive of - 
Select and explain. 
A. Coarctation of aorta, B. Pheochromocytoma, C. Renal parenchymatous disease, D. Drug induced
C: Renal parenchymatous disease
Answer: C: Renal parenchymatous disease 
Explanation: Ans. is 'c' i.e., Renal Parenchymatous disease o Essential hypertension is relatively uncommon (10%) in children in contrast to aged persons, o The four most common causes of hypertension in children are:-i) Chronic glomerulonephritis (most common) - 25 %ii) Chronic pyelonephritis - 10%iii) Renal artery stenosis - 10%iv) Essential hypertension - 10 %