The nurse auscultates a heart murmur on a client with cardiovascular disease. At which anatomic landmark will an aortic murmur be heard the loudest?

Second intercostal space, right of sternum.

Third intercostal space, left of sternum.

Second intercostal space, left of sternum.

Fourth intercostal space, left mid-clavicular line.

Answer and Explanation

The Correct Answer is C

Choice A reason: The second intercostal space, right of sternum, is not the anatomic landmark where an aortic murmur will be heard the loudest. A heart murmur is an abnormal sound that is produced by turbulent blood flow through the heart valves or chambers. ¹ An aortic murmur is a type of heart murmur that occurs when the aortic valve, which separates the left ventricle and the aorta, is damaged or diseased. ² The second intercostal space, right of sternum, is the location where the aortic valve can be best heard, but not the location where the aortic murmur will be most audible. ³

Choice B reason: The third intercostal space, left of sternum, is not the anatomic landmark where an aortic murmur will be heard the loudest. A heart murmur is an abnormal sound that is produced by turbulent blood flow through the heart valves or chambers. ¹ An aortic murmur is a type of heart murmur that occurs when the aortic valve, which separates the left ventricle and the aorta, is damaged or diseased. ² The third intercostal space, left of sternum, is the location where the pulmonary valve, which separates the right ventricle and the pulmonary artery, can be best heard, but not the location where the aortic murmur will be most audible. ³

Choice C reason: The second intercostal space, left of sternum, is the anatomic landmark where an aortic murmur will be heard the loudest. A heart murmur is an abnormal sound that is produced by turbulent blood flow through the heart valves or chambers. ¹ An aortic murmur is a type of heart murmur that occurs when the aortic valve, which separates the left ventricle and the aorta, is damaged or diseased. ² The second intercostal space, left of sternum, is the location where the aortic murmur will be most audible, as it is the closest to the aorta, the largest artery in the body. ³

Choice D reason: The fourth intercostal space, left mid-clavicular line, is not the anatomic landmark where an aortic murmur will be heard the loudest. A heart murmur is an abnormal sound that is produced by turbulent blood flow through the heart valves or chambers. ¹ An aortic murmur is a type of heart murmur that occurs when the aortic valve, which separates the left ventricle and the aorta, is damaged or diseased. ² The fourth intercostal space, left mid-clavicular line, is the location where the tricuspid valve, which separates the right atrium and the right ventricle, can be best heard, but not the location where the aortic murmur will be most audible. ³

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Correct Answer is A

Explanation

Choice A reason: Decreasing the incidence of tachycardia is not the main therapeutic effect of atenolol for coronary artery disease. Atenolol is a beta-blocker that lowers the heart rate, but this is not the primary goal of therapy for coronary artery disease. Coronary artery disease is caused by atherosclerosis, which is the buildup of plaque in the arteries that supply the heart. This reduces the blood flow and oxygen to the heart muscle and causes angina, or chest pain.

Choice B reason: Dilating the coronary arteries is not the therapeutic effect of atenolol for coronary artery disease. Atenolol does not directly affect the diameter of the coronary arteries. It works by blocking the beta receptors in the heart and reducing the response to adrenaline and other stress hormones. This lowers the blood pressure and the oxygen demand of the heart.

Choice C reason: This is the correct answer. Decreasing cardiac workload is the therapeutic effect of atenolol for coronary artery disease. Atenolol reduces the contractility and the excitability of the heart muscle, which lowers the force and the frequency of the heartbeats. This decreases the amount of work that the heart has to do and the amount of oxygen that it needs. This helps prevent or relieve anginal attacks and improve the quality of life of the client.

Choice D reason: Increasing the strength of myocardial contraction is not the therapeutic effect of atenolol for coronary artery disease. Atenolol does not increase the strength of myocardial contraction, but rather decreases it. Increasing the strength of myocardial contraction would increase the oxygen demand of the heart and worsen the angina. Atenolol aims to reduce the oxygen demand of the heart and improve the blood supply to the heart.

A. It is not necessary to involve family B. Adapting the program to the client's needs and abilities C. Providing the client with specific details of how to perform the exercises D. Reassuring the client that they will be able to do the exercise program

Correct Answer is B

Explanation

Choice A reason: It is not the best intervention to exclude the family from the exercise program. Family involvement can provide support, motivation, and accountability for the client. Family members can also participate in the exercise program and benefit from its positive effects on blood pressure and overall health.

Choice B reason: This is the best intervention to help the client maintain the exercise program. Adapting the program to the client's needs and abilities ensures that the exercise is appropriate, safe, and effective for the client. It also increases the client's confidence, satisfaction, and adherence to the program.

Choice C reason: Providing the client with specific details of how to perform the exercises is an important intervention, but not the best one. The client may still have difficulties or barriers to maintaining the exercise program, such as lack of time, resources, or motivation. The nurse should also assess the client's readiness, preferences, and goals for the exercise program.

Choice D reason: Reassuring the client that they will be able to do the exercise program is a supportive intervention, but not the best one. The client may not feel reassured if the exercise program is too challenging, unrealistic, or unappealing for them. The nurse should also monitor the client's progress, feedback, and outcomes of the exercise program.

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The nurse auscultates a heart murmur on a client with cardiovascular disease. At which anatomic landmark will an aortic murmur be heard the loudest?

Nursing Test Bank

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Explanation

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Correct Answer is B

Explanation

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