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.
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Related Questions
Correct Answer is B
Explanation
A. Pericardiocentesis: Pericardiocentesis is a procedure used to drain fluid from the pericardial sac, typically performed in cases of pericardial effusion or cardiac tamponade. It is not indicated for the treatment of hypertrophic cardiomyopathy (HCM), which involves structural abnormalities of the heart muscle rather than pericardial fluid accumulation.
B. Septal myectomy: Septal myectomy is a surgical procedure performed to treat hypertrophic obstructive cardiomyopathy (HOCM), a subtype of hypertrophic cardiomyopathy characterized by thickening of the interventricular septum and dynamic left ventricular outflow tract obstruction. Septal myectomy involves the surgical removal of a portion of the hypertrophied septum to relieve left ventricular outflow tract obstruction and improve symptoms.
C. Pericardial window: A pericardial window is a surgical procedure used to create a communication between the pericardial sac and the pleural space, typically performed in cases of recurrent pericardial effusion or tamponade to prevent fluid re-accumulation. It is not indicated for the treatment of hypertrophic cardiomyopathy.
D. Synchronized electrical cardioversion: Synchronized electrical cardioversion is a procedure used to restore normal sinus rhythm in patients with certain types of cardiac arrhythmias, such as atrial fibrillation or atrial flutter. It is not typically indicated for the treatment of hypertrophic cardiomyopathy, although patients with HCM may develop arrhythmias as a complication.
Correct Answer is C
Explanation
A. People who abstain from alcohol: Abstaining from alcohol does not necessarily increase the risk of sustaining a traumatic brain injury (TBI). In fact, excessive alcohol consumption can increase the risk of falls and accidents leading to TBIs, but abstaining from alcohol itself is not a risk factor for TBI.
B. People who live in rural areas: Living in rural areas may be associated with certain risk factors for TBIs, such as increased rates of motor vehicle accidents due to factors like higher speed limits and longer distances traveled. However, it is not a direct cause of TBIs.
C. People who play contact sports: Engaging in contact sports, such as football, soccer, or rugby, poses a higher risk of sustaining a traumatic brain injury due to the potential for collisions, falls, and impacts during gameplay.
D. People who are in their 30's: While traumatic brain injuries can occur at any age, individuals who are involved in activities with a higher risk of head injuries, such as contact sports or high-risk occupations, may be more prone to TBIs regardless of their age. Age alone is not a significant risk factor for TBIs.
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