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 C
Explanation
Choice A Reason:
Previous stroke is not directly associated with an increased risk of status asthmaticus. While individuals with certain medical conditions, such as neurological disorders, may have an increased risk of complications from severe asthma exacerbations, a previous stroke alone is not a recognized risk factor for status asthmaticus.
Choice B Reason:
Irritants and hypersensitivity to medications, may trigger asthma exacerbations, but they are not specific risk factors for status asthmaticus. Asthma exacerbations triggered by irritants or medications can typically be managed with appropriate treatment measures and do not necessarily lead to status asthmaticus.
Choice C Reason:
Previous intubation due to status asthmaticus episode is correct. Status asthmaticus is a severe and life-threatening asthma exacerbation that is unresponsive to standard treatment measures such as bronchodilators and corticosteroids. It is characterized by prolonged and severe bronchospasm, airway inflammation, and respiratory distress.
Choice D Reason:
Bronchial pneumonia is not a known risk factor for status asthmaticus. Bronchial pneumonia, or pneumonia affecting the bronchi and lungs, is a separate respiratory condition caused by bacterial, viral, or fungal infections. While pneumonia can exacerbate asthma symptoms in individuals with asthma, it is not specifically associated with an increased risk of status asthmaticus.
Correct Answer is ["C","D","E"]
Explanation
Choice A Reason:
Bladder spasms are not commonly reported as adverse effects of methylprednisolone. However, bladder dysfunction can occur in individuals with multiple sclerosis due to the disease process itself, but it is not specifically related to corticosteroid therapy.
Choice B Reason:
Hypotension is not a common adverse effect of methylprednisolone. In fact, corticosteroids can often lead to fluid retention and sodium retention, which can contribute to hypertension rather than hypotension.
Choice C Reason:
Delayed wound healing is correct. Corticosteroids can impair the body's ability to heal wounds by suppressing the inflammatory response and collagen synthesis. Therefore, clients receiving methylprednisolone may experience delayed wound healing, which can be problematic, especially in individuals with pre-existing wounds or undergoing surgical procedures.
Choice D Reason:
Hirsutism (excessive hair growth, especially in women) can occur with long-term corticosteroid use due to the effect of steroids on hair follicles. It is a possible adverse effect of methylprednisolone.
Choice E Reason:
Hyperglycemia is correct. Corticosteroids can increase blood glucose levels by promoting gluconeogenesis, reducing glucose uptake by tissues, and inducing insulin resistance. Clients receiving methylprednisolone may develop hyperglycemia, which can be particularly concerning for individuals with diabetes or those at risk of developing diabetes.
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