A student nurse is confused about the Monroe-Kelly doctrine. How does the registered nurse explain it to the student?
A.
Compensation for an increase in one of the skull's components
B.
Hypothesis about the length of a coma determining the outcome
C.
Immunomodulatory theory of an inborn resistance to rabies
D.
Theory that seizures change the neurons and provoke more seizures
ANS: A
The brain consists of three components: brain matter, cerebral spinal fluid (CSF), and blood. Because the skull is a hard vault (after fontanels have closed), an increase in one of the components is not tolerated. The Monroe-Kelly doctrine states that in order to compensate for an increase in one of the components, there must be an equitable decrease in the other two components in order to prevent brain injury.
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