A nurse is caring for a client who has sustained a neurologic injury with increased intracranial pressure and decreased cerebral perfusion.
Which of the following will maintain cerebral perfusion pressure constant?

Choice A rationale
Nausea and vomiting are common symptoms associated with migraines. Asking about these symptoms can help confirm a diagnosis of a migraine.
Choice B rationale
Sensitivity to light, also known as photophobia, is a common symptom of migraines. However, the question “Are the lights in here bothering you?” is less specific to migraines as it could be indicative of several other conditions as well.
Choice C rationale
While confusion or clouded thinking can occur with migraines, it is not as common as other symptoms such as nausea, vomiting, and sensitivity to light.
Choice D rationale
Unusual smells, known as olfactory hallucinations, are not typically associated with migraines. They are more commonly associated with conditions such as epilepsy.
Choice E rationale
Weakness before the headache started or currently feeling weak now is not a typical symptom of migraines. It could be indicative of a more serious condition, such as a stroke.

Choice A rationale
A traumatic brain injury (TBI) can indeed disrupt cellular function and cause blood vessel damage. This can lead to a range of potential effects, from temporary changes in brain function to long-term complications or even death.
Choice B rationale
Damage to brain tissue from decreased pressure shock waves is not typically associated with TBI. This type of injury is more commonly associated with blast injuries, such as those caused by explosions.
Choice C rationale
While increased blood supply and edema (swelling) can occur in the area of a brain injury, they are typically responses to the injury rather than direct consequences of the TBI itself. These processes can contribute to further damage and complications.
Choice D rationale
A TBI does not typically lead to increased synaptic connections. In fact, the injury can cause loss of neurons and synapses, which can lead to long-term cognitive and functional impairments.