This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Raised intracranial tension, Subject name: Pediatrics
Cerebral perfusion pressure in children is: 
Select and explain. 
A. 11-15 mm Hg, B. 16-20 mm Hg, C. 20-40 mm Hg, D. 40-60 mm Hg
D: 40-60 mm Hg
Answer: D: 40-60 mm Hg 
Explanation: - Cerebral perfusion pressure (CPP) is calculated as the difference between the systemic mean aerial pressure (MAP) and the intracranial pressure (ICP) - The normal range of CPP is thought to be approximately 50 to 150 mm Hg in healthy adults, and 40 to 60 mm Hg, in children. Normal CPP (mm Hg) 2-6 yrs - 50 mm of Hg 7-10 yrs - 55 mm of Hg 11-16 yrs - 65 mm of Hg