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
Reducing the temperature in the room is not typically a treatment for brain herniation. While it’s important to maintain a comfortable environment for the patient, there’s no evidence to suggest that room temperature has a direct impact on the progression or treatment of brain herniation.
Choice B rationale

Hyperventilating the patient is a possible treatment for brain herniation. Hyperventilation causes vasoconstriction, which can decrease cerebral blood flow and intracranial pressure, potentially relieving the pressure caused by the herniation.
Choice C rationale
Lowering blood pressure is not typically a treatment for brain herniation. While maintaining a stable blood pressure is important in all patients, aggressively lowering blood pressure could potentially decrease cerebral perfusion and worsen the patient’s condition.
Choice D rationale
Decreasing sedation is not typically a treatment for brain herniation. In fact, sedatives might be used to reduce metabolic demands and control agitation in a patient with brain herniation.

Choice A rationale
The aura phase is characterized by sensory, motor, or visual disturbances that occur before the headache phase of a migraine. Symptoms such as tingling of the face and blind spots in the eyes are common during this phase.

Choice B rationale
The postdrome phase, also known as the “migraine hangover,” occurs after the headache phase. It does not typically include symptoms such as tingling of the face or blind spots in the eyes.
Choice C rationale
The prodrome phase, also known as the pre-headache phase, can occur hours to days before the headache phase. It can include symptoms such as mood changes, food cravings, and neck stiffness, but not typically tingling of the face or blind spots in the eyes.
Choice D rationale
The headache phase is the period during a migraine when the actual headache occurs. It is not typically associated with symptoms such as tingling of the face or blind spots in the eyes.