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.
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.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is A
Explanation
A. Rheumatoid arthritis: Rheumatoid arthritis is an autoimmune condition characterized by chronic inflammation of the joints. Some research suggests a possible link between autoimmune disorders such as rheumatoid arthritis and Meniere's disease. Autoimmune conditions can affect the inner ear, leading to vestibular dysfunction and contributing to the development of Meniere's disease.
B. Bacterial pneumonia: Bacterial pneumonia is a respiratory infection caused by bacterial pathogens. There is no direct association between bacterial pneumonia and an increased risk of developing Meniere's disease. Meniere's disease primarily affects the inner ear and is not related to respiratory infections.
C. Macular degeneration: Macular degeneration is a degenerative eye disease that affects the central portion of the retina. There is no known association between macular degeneration and an increased risk of developing Meniere's disease. These conditions affect different parts of the body and are not related in terms of etiology or risk factors.
D. Osteoporosis: Osteoporosis is a condition characterized by loss of bone density, leading to an increased risk of fractures. There is no direct association between osteoporosis and an increased risk of developing Meniere's disease. These conditions affect different systems in the body and are not known to be related.
Correct Answer is ["B","C","E"]
Explanation
Answer: B, C, E
Whether you are a student looking to ace your exams or a practicing nurse seeking to enhance your expertise , our nursing education contents will empower you with the confidence and competence to make a difference in the lives of patients and become a respected leader in the healthcare field.
Visit Naxlex, invest in your future and unlock endless possibilities with our unparalleled nursing education contents today
Report Wrong Answer on the Current Question
Do you disagree with the answer? If yes, what is your expected answer? Explain.
Kindly be descriptive with the issue you are facing.