A nurse is teaching a student about cerebral edema. The student nurse asks, "What type of cerebral edema is associated with a client who has a stroke?" Which of the following is the best response from the nurse?
Vasogenic cerebral edema
Osmotic cerebral edema
Cellular cerebral edema
Interstitial cerebral edema
The Correct Answer is A
Choice A Reason:
Vasogenic cerebral edema is appropriate response. Vasogenic cerebral edema occurs due to disruption of the blood-brain barrier (BBB), leading to leakage of fluid and proteins from the blood vessels into the brain parenchyma. This type of cerebral edema is commonly associated with conditions such as brain tumors, abscesses, and ischemic stroke.
Choice B Reason:
Osmotic cerebral edema is inappropriate response. Osmotic cerebral edema occurs when there is an imbalance of osmotic forces across the blood-brain barrier, leading to the movement of water into the brain cells. This type of cerebral edema can result from conditions such as hyponatremia or the administration of hypertonic solutions.
Choice C Reason:
Cellular cerebral edema is inappropriate response. Cellular cerebral edema involves the swelling of brain cells (neurons and glial cells) due to various insults, such as ischemia, hypoxia, or metabolic disturbances. This type of cerebral edema can occur in conditions such as ischemic stroke or traumatic brain injury.
Choice D Reason:
Interstitial cerebral edema is incorrect response. Interstitial cerebral edema involves the accumulation of fluid within the interstitial spaces of the brain tissue. This type of cerebral edema can occur in conditions such as hydrocephalus, where there is obstruction of cerebrospinal fluid (CSF) flow.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is ["B","C","D","E"]
Explanation
Choice A Reason:
Obtaining a hospital bed and keeping all four siderails up, may not be the best choice. While a hospital bed with siderails may be appropriate for some individuals with Parkinson's disease who are at high risk of falls, keeping all four siderails up continuously can potentially restrict mobility and independence. It's important to balance safety with the client's comfort and ability to move independently.
Choice B Reason:
Removing all throw rugs from the home is correct. Throw rugs can be tripping hazards, especially for individuals with mobility issues or balance problems. Removing throw rugs can reduce the risk of trips and falls within the home.
Choice C Reason:
Installing handrails in the bathroom is correct. Installing handrails in the bathroom, especially near the toilet and shower, can provide additional support and stability for individuals with Parkinson's disease when performing daily activities. This can help prevent falls in a potentially slippery environment.
Choice D Reason:
Ensuring adequate lighting along walking spaces is correct. Good lighting is crucial for individuals with Parkinson's disease to see obstacles and hazards clearly. Adequate lighting along walking spaces helps improve visibility and reduces the risk of falls, especially during nighttime or low-light conditions.
Choice E Reason:
Keeping walking areas free of clutter is correct. Clutter and obstacles in walking areas increase the risk of tripping and falling, particularly for individuals with Parkinson's disease who may have difficulty with balance and coordination. Keeping walking areas clear of clutter helps create a safer environment.
Correct Answer is D
Explanation
Correct answer: D
Choice A Reason:
Decreased pulmonary vascular resistance is incorrect. Inflammatory mediators released in response to a pulmonary embolism can lead to vasoconstriction and increased pulmonary vascular resistance. This is part of the body's response to redirect blood flow away from the affected area of the lung and maintain adequate perfusion to other areas.
Choice B Reason:
Hypercapnia is incorrect. Hypercapnia refers to elevated levels of carbon dioxide (CO2) in the blood.Hypocapnia usually is present with embolism; hypercapnia, on the other hand, is rare.
Choice C Reason:
Hypoventilation is incorrect. Hypoventilation occurs when there is inadequate ventilation of the lungs relative to metabolic demands. In the context of a pulmonary embolism, hypoventilation can occur due to factors such as pain, respiratory muscle fatigue, or impaired gas exchange, all of which can be influenced by the release of inflammatory mediators.
Choice D Reason:
Respiratory alkalosis is correct.In response to the blockage and the resulting inflammation, the body often increases the respiratory rate as a compensatory mechanism to maintain adequate oxygen levels and remove carbon dioxide.Due to the increased breathing rate, there is excessive exhalation of carbon dioxide, leading to a decrease in the partial pressure of CO2 in the blood. This results in an increase in blood pH, causing respiratory alkalosis.
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