A nurse is assessing a client who has Lewy body dementia. The nurse should recognize that which of the following is responsible for changes in thinking, communication, movement, and emotional processing in Lewy body dementia?
Tau protein
Neurofibrillary tangles
Alpha-synuclein protein
Beta-amyloid protein
The Correct Answer is C
A. Tau protein: Tau protein is primarily associated with Alzheimer's disease and other tauopathies, not Lewy body dementia.
B. Neurofibrillary tangles: Neurofibrillary tangles are aggregates of hyperphosphorylated tau protein found in Alzheimer's disease, not typically in Lewy body dementia.
C. Alpha-synuclein protein: Lewy bodies, which are abnormal aggregates of alpha-synuclein protein, are a hallmark pathology of Lewy body dementia. These protein aggregates disrupt neuronal function and are responsible for the cognitive, motor, and emotional symptoms seen in Lewy body dementia.
D. Beta-amyloid protein: Beta-amyloid protein is primarily associated with Alzheimer's disease, not Lewy body dementia. It forms plaques in the brain, which contribute to neurodegeneration and cognitive decline in Alzheimer's disease.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is D
Explanation
A. "I should ask my son to drive me to the grocery store." This statement does not directly address the risk for sudden cardiac death associated with arrhythmogenic cardiomyopathy. While it may be a valid safety precaution to have someone else drive, it does not specifically address the client's understanding of the condition and its implications for sudden cardiac death.
B. "I will probably become easily constipated." Constipation is not a typical manifestation or complication of arrhythmogenic cardiomyopathy. This statement does not demonstrate an understanding of the condition and its associated risk of sudden cardiac death.
C. "I am aware that I may develop frequent hiccups." Frequent hiccups are not a characteristic symptom or complication of arrhythmogenic cardiomyopathy. This statement does not indicate an understanding of the condition and its risk for sudden cardiac death.
D. "I will need to avoid strenuous activity to prevent my heart from stopping." This statement reflects an understanding of the condition and its associated risk of sudden cardiac death. Strenuous activity can exacerbate arrhythmias in individuals with arrhythmogenic cardiomyopathy, potentially leading to life-threatening arrhythmias such as ventricular fibrillation. Avoiding strenuous activity is a recommended precaution to reduce the risk of sudden cardiac death in individuals with this condition.
Correct Answer is A
Explanation
A. "A deregulated cytokine storm causes an inflammatory response": Systemic inflammatory response syndrome (SIRS) is characterized by a dysregulated inflammatory response triggered by various insults such as infection, trauma, burns, or ischemia. In SIRS, the immune system responds excessively, leading to the release of pro-inflammatory cytokines (cytokine storm), including tumor necrosis factor-alpha (TNF-α), interleukin-1 (IL-1), and interleukin-6 (IL-6). This cytokine cascade results in widespread inflammation and systemic manifestations, such as fever, tachycardia, tachypnea, and leukocytosis.
B. "The major organ prone to injury during SIRS is the heart": While SIRS can lead to multi-organ dysfunction, including cardiac dysfunction, it does not primarily target the heart. SIRS affects multiple organs, including the lungs, kidneys, liver, and gastrointestinal tract. Cardiac dysfunction in SIRS may result from the inflammatory response, hypoperfusion, or direct myocardial injury.
C. "Spleen dysfunction causes blood clotting issues": SIRS can lead to coagulation abnormalities, but spleen dysfunction is not the primary cause. Coagulation abnormalities in SIRS are often attributed to endothelial dysfunction, activation of the coagulation cascade, and consumption of clotting factors, rather than spleen dysfunction.
D. "Activation of the inflammatory cascade causes increased perfusion": Activation of the inflammatory cascade in SIRS does not typically lead to increased perfusion. Instead, SIRS can lead to alterations in perfusion, including tissue hypoperfusion and microvascular dysfunction. In severe cases, SIRS can progress to septic shock, characterized by profound hypotension and inadequate tissue perfusion.
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