A nurse is taking care of a client who has sustained a neurologic injury with increased intracranial pressure and decreased cerebral perfusion. Which of the following will keep cerebral perfusion pressure constant?
Regulation of constriction and dilation of blood vessels in the brain
Regulation of catecholamines circulating throughout the body
Regulation of the amount of carbon dioxide exhaled
Regulation of how much blood is pumped from the heart
The Correct Answer is A
A. The constriction and dilation of blood vessels in the brain helps maintain appropriate cerebral blood flow and cerebral perfusion pressure (CPP) despite fluctuations in blood pressure.
B. Catecholamines regulate other systemic body functions, but they do not directly impact cerebral perfusion pressure.
C. Carbon dioxide exhalation can affect blood flow, but the primary regulation of CPP is through blood vessel constriction and dilation.
D. The amount of blood pumped from the heart can impact overall blood pressure but does not directly regulate cerebral perfusion pressure.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is B
Explanation
B. Brain cells begin to die within 2 minutes if blood flow is interrupted, which is why rapid intervention is crucial during a stroke or other conditions that block cerebral blood flow.
A. 8 minutes is too long for brain cells to survive without oxygen.
C. 20 minutes is too long for brain cells to survive without oxygen.
D. 5 minutes is too long for brain cells to survive without oxygen.
Correct Answer is B
Explanation
A. Poor judgment: Poor judgment is more likely to be seen with a stroke in the right hemisphere.
B. Intellectual impairment: A stroke in the left hemisphere can cause cognitive and intellectual deficits, especially in language and reasoning.
C. Loss of depth perception: Loss of depth perception is typically seen with right-sided strokes, not left- sided.
D. Impaired sense of humor: This is more common in right-sided strokes affecting the emotional and social aspects of the brain.
Whether you are a student looking to ace your exams or a practicing nurse seeking to enhance your expertise , our nursing education contents will empower you with the confidence and competence to make a difference in the lives of patients and become a respected leader in the healthcare field.
Visit Naxlex, invest in your future and unlock endless possibilities with our unparalleled nursing education contents today
Report Wrong Answer on the Current Question
Do you disagree with the answer? If yes, what is your expected answer? Explain.
Kindly be descriptive with the issue you are facing.