Describe the factors that influence intracranial pressure.
A structure approached works well for “describe the factors …” questions. Better answers
provided a definition of ICP, explained the Monro-Kellie doctrine and then detailed the factors
which affect the volume of each of the components - cerebro spinal fluid (CSF), cerebral blood
flow and brain parenchyma. Some candidates focused only on factors which cause intracranial
hypertension and were thus unable to score full marks. Many candidates stated that CSF
production was ICP dependant which is incorrect.