The nurse, providing care to a patient with an increase in intracranial pressure, realizes that in order to prevent an increase in intracranial pressure, an increase in the volume of brain tissue will be accompanied by a (an)
1. increase in another of the intracranial compartments.
2. decrease in another of the intracranial compartments.
3. increase in the blood flow to the brain.
4. decrease in the blood brain barrier.
2
Rationale: The contents of the intracranial vault include the brain, cerebral blood volume, and cerebrospinal fluid. The Monro–Kellie hypothesis states that as the content of one of the intrancranial compartments increases, it is at the expense of the other two. The correct answer is that if there is an increase in the volume of brain tissue, there will need to be a decrease in another of the intracranial compartments. The other answer choices are not principles supported by the Monro-Kellie hypothesis.
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