A nurse is teaching several newly licensed nurses about cardiac valve replacement. Which of the following should the nurse include in the teaching?

The aortic and mitral valves are the most commonly replaced valves.

Mitral valve insufficiency occurs during the diastolic phase of the cardiac cycle.

Inadequate closure of the tricuspid valve causes overload in the left ventricle.

Aortic stenosis increases right ventricular systolic pressure and decreases afterload.

Answer and Explanation

The Correct Answer is A

A. The aortic and mitral valves are the most commonly replaced valves: This statement is accurate. The aortic and mitral valves are indeed the most commonly replaced valves in cardiac valve replacement surgeries. Aortic valve replacement is commonly performed for conditions such as aortic stenosis or regurgitation, while mitral valve replacement is often indicated for mitral regurgitation or stenosis.

B. Mitral valve insufficiency occurs during the diastolic phase of the cardiac cycle: This statement is incorrect. Mitral valve insufficiency, also known as mitral regurgitation, occurs during the systolic phase of the cardiac cycle. It involves the backflow of blood from the left ventricle into the left atrium during ventricular systole, leading to volume overload of the left atrium and potentially causing symptoms such as dyspnea and fatigue.

C. Inadequate closure of the tricuspid valve causes overload in the left ventricle: This statement is incorrect. Inadequate closure of the tricuspid valve leads to regurgitation of blood from the right ventricle back into the right atrium during ventricular systole. This condition, known as tricuspid regurgitation, causes volume overload in the right atrium and ventricle, rather than overload in the left ventricle.

D. Aortic stenosis increases right ventricular systolic pressure and decreases afterload: This statement is partially correct. Aortic stenosis indeed increases left ventricular systolic pressure and decreases afterload, not right ventricular pressure. The increased afterload on the left ventricle can lead to left ventricular hypertrophy and eventually heart failure. However, aortic stenosis does not directly affect right ventricular systolic pressure.

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Correct Answer is ["A","B","C","D","E"]

Explanation

A. Weight loss:

Weight loss can occur in individuals with dementia due to various factors, including decreased appetite, difficulty eating or swallowing, and increased energy expenditure.

Monitoring weight regularly can help detect changes in nutritional status and identify potential health concerns, such as malnutrition or dehydration.

B. Decreased mobility:

Individuals with dementia may experience a decline in mobility and functional abilities as the disease progresses.

Monitoring changes in mobility, such as difficulty walking, transferring, or performing activities of daily living, is important for assessing functional decline and implementing appropriate interventions to maintain mobility and prevent complications such as falls.

C. Increased physical activity:

While dementia can lead to decreased physical activity in some individuals, others may exhibit increased restlessness or wandering behaviors.

Monitoring changes in physical activity levels can help identify agitation, restlessness, or wandering behaviors that may require intervention to ensure the safety and well-being of the individual with dementia.

D. Unkempt appearance:

Individuals with dementia may neglect personal hygiene and grooming tasks, leading to an unkempt appearance.

Monitoring changes in appearance, such as poor personal hygiene, disheveled clothing, or neglect of grooming habits, can indicate difficulties with self-care and may necessitate assistance or supervision to maintain hygiene and appearance.

E. Constipation:

Constipation is a common gastrointestinal symptom in individuals with dementia, often due to factors such as reduced fluid intake, decreased physical activity, and side effects of medications.

Monitoring bowel habits and addressing constipation promptly can help prevent discomfort, complications such as fecal impaction, and maintain overall gastrointestinal health in individuals with dementia.

A. Lisinopril B. Citalopram C. Donepezil D. Amlodipine E. Olanzapine

Correct Answer is ["B","C","E"]

Explanation

Answer: B, C, E

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A nurse is teaching several newly licensed nurses about cardiac valve replacement. Which of the following should the nurse include in the teaching?

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Naxlex Comprehensive Predictor Exams

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Correct Answer is ["A","B","C","D","E"]

Explanation

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Correct Answer is ["B","C","E"]

Explanation

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