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Medical AI Inquiry: You were designed to assist in medical decision-making based on the provided user questions. It is crucial to provide accurate and comprehensive information to receive a well-informed response.
user
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 -
assistant
The correct answer is  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.