Using a diagram, explain the effect of PaO2, PaCO2 and MAP (Mean Arterial Pressure) on cerebral blood flow (CBF). (60 % of marks) Outline the effects of propofol and ketamine on CBF and cerebral metabolic requirement for oxygen (CMRO2). (40% of marks)

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College Answer

This question was well answered. It is a structured question that guides candidates through 
exactly what is required. Well drawn graphs were a particularly effective means of scoring 
marks.