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A five year old boy presents with precocious puberty and a blood pressure of 130/80 mmHg. Estimation of which of the following will help in diagnosis -

A
| 17 hydroxy-progesterone
B
| Cortisol
C
| Aldosterone
D
Renin
High-Yield Explanation
Ans- A. Ref- Nelson Textbook Of Pediatrics Vol. 1 20th ed Biochemical diagnostic studies show elevated levels of serum 17-OHP, the substrate for the defective 21-hydroxylase enzyme activity.

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