A nurse is caring for a client admitted with meningitis. The student nurse asks, "I know that the client has a lot of edemas in the brain, but what causes it?" Which of the following responses from the nurse best answers the student's question?
"Cerebral edema is caused by osmotic cerebral edema."
"Cerebral edema is caused by whole body inflammation which affects the brain the most."
"Cerebral edema is caused by the by-products of the pathogen that causes the meningitis."
"Cerebral edema is caused by cerebrospinal fluid flowing from the intraventricular space to the interstitial area of the brain."
The Correct Answer is C
A. Osmotic edema refers to fluid shifts due to changes in osmotic gradients (as seen in conditions like hyponatremia), not the inflammatory process of meningitis.
B. While inflammation is a key part of the body's response in meningitis, the edema is not a result of generalized whole-body inflammation. The edema is more directly linked to local inflammatory reactions in the brain triggered by the pathogen’s by-products.
C. Bacterial cell walls, endotoxins, and other components released by the bacteria directly stimulate inflammation, causing the breakdown of the BBB and allowing fluid and inflammatory cells to leak into the brain tissue.
D. This description is more aligned with the pathophysiology of conditions like hydrocephalus rather than meningitis. In meningitis, cerebral edema is primarily due to the inflammatory response, not abnormal CSF flow.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is A
Explanation
Choice A Reason:
Hypertension is correct. This is a modifiable risk factor for stroke. Hypertension, or high blood pressure, significantly increases the risk of stroke. Treating and controlling hypertension through lifestyle changes and medication can help reduce the risk of stroke.
Choice B Reason:
Client's age is incorrect. While age itself is not modifiable, age is a non-modifiable risk factor for stroke. Risk of stroke increases with age, particularly in individuals over 55 years old. However, other modifiable risk factors can be addressed to reduce overall risk.
Choice C Reason:
History of sickle cell disease is incorrect. Sickle cell disease is a genetic disorder characterized by abnormal hemoglobin in red blood cells. While sickle cell disease increases the risk of certain complications, such as stroke in children, it is not a modifiable risk factor in the traditional sense.
Choice D Reason:
Parent who has cardiovascular disease is incorrect. While having a parent with cardiovascular disease may indicate a genetic predisposition to certain risk factors, it is not a direct modifiable risk factor for stroke. However, individuals with a family history of cardiovascular disease may have increased awareness and motivation to address modifiable risk factors such as hypertension, smoking, and diabetes.
Correct Answer is B
Explanation
Choice A Reason:
"I have signed up for an aerobics class three times a week." This statement is incorrect. Participating in aerobics classes three times a week may not be suitable for someone with spinal stenosis, as certain movements and high-impact activities common in aerobics classes can exacerbate symptoms and increase the risk of injury to the spine.
Choice B Reason:
"I ride my bicycle every day." This statement is correct. Cycling is generally considered a low-impact exercise that can be beneficial for individuals with spinal stenosis, as it helps improve cardiovascular fitness without placing excessive stress on the spine. Riding a bicycle regularly may be a suitable exercise option for this client.
Choice C Reason:
"I like to jog a half a mile every day." This statement is incorrect. Jogging involves repetitive impact and can place significant stress on the spine, which may exacerbate symptoms of spinal stenosis. It is generally not recommended for individuals with spinal stenosis due to the high-impact nature of the activity.
Choice D Reason:
"I enjoy doing circuit training once a week.": Circuit training typically involves a combination of aerobic and strength-training exercises performed in rapid succession. While some components of circuit training, such as strength training, can be beneficial for individuals with spinal stenosis, the intensity and variety of exercises in circuit training may not be suitable for everyone with this condition.
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