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

Answer and Explanation

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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Correct Answer is D

Explanation

A. Stress can contribute to the development of atrial flutter, but it is not the highest risk factor compared to other options.

B. While electrolyte imbalances resulting from vomiting and diarrhea can predispose someone to arrhythmias, they are not as significant a risk factor for atrial flutter as other conditions.

C. A family history of atrial flutter may increase the likelihood of developing the condition, but it is not as significant a risk factor compared to other options.

D. A history of myocardial infarction and stent placement indicates underlying heart disease, which is a significant risk factor for developing atrial flutter. Cardiac events like myocardial infarction can lead to structural changes in the heart, such as scarring or remodeling, which can predispose individuals to atrial flutter. Therefore, this client is at the highest risk for developing atrial flutter among the options provided.

A. Synchronized electrical cardioversion B. Cardiac resynchronization therapy (CRT) C. Heart catheterization with percutaneous intervention D. Echocardiogram

Correct Answer is B

Explanation

A. Synchronized electrical cardioversion: Synchronized electrical cardioversion is a procedure used to restore normal sinus rhythm in patients with certain types of arrhythmias, such as atrial fibrillation or atrial flutter. However, it is not typically indicated for all patients with worsening heart failure and arrhythmias.

B. Cardiac resynchronization therapy (CRT): CRT, also known as biventricular pacing, involves the placement of a specialized pacemaker device to improve the coordination of contractions between the heart's chambers. It is often used in patients with heart failure and arrhythmias to help regulate the rhythm and improve cardiac function.

C. Heart catheterization with percutaneous intervention: Heart catheterization with percutaneous intervention, such as angioplasty or stent placement, is used to treat coronary artery disease by opening narrowed or blocked blood vessels. While coronary artery disease may contribute to heart failure, this procedure specifically targets the coronary arteries rather than arrhythmias.

D. Echocardiogram : An echocardiogram is a diagnostic test that uses sound waves to create images of the heart's structure and function. While an echocardiogram may provide valuable information about the heart's condition in a patient with heart failure and arrhythmias, it is not a procedure used to regulate the rhythm directly.

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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?

Nursing Test Bank

Naxlex Comprehensive Predictor Exams

A nurse is teaching a group of clients about risk factors for developing atrial flutter. Which of the following clients should the nurse understand is at highest risk for developing atrial flutter?

Correct Answer is D

Explanation

A nurse is planning care for a client who has worsening heart failure and is experiencing arrhythmias. Which of the following procedures should the nurse anticipate the client will require to regulate the rhythm?

Correct Answer is B

Explanation

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