A client who experienced an MI is prescribed beta-blocker medication. The client asks the nurse about the purpose of this medication. How should the nurse respond?

"Beta-blockers help dilate your blood vessels, improving blood flow to your heart."

"It reduces your cholesterol levels and prevents the formation of plaques in your arteries."

"Beta-blockers lower your blood pressure and decrease the workload of your heart."

"It prevents blood clots from forming in your coronary arteries and causing another MI."

Answer and Explanation

The Correct Answer is C

A) This choice is incorrect because beta-blockers do not directly dilate blood vessels. They primarily work by blocking the effects of adrenaline on the heart and blood vessels, leading to decreased heart rate and reduced blood pressure.

B) This choice is incorrect because beta-blockers do not directly affect cholesterol levels or prevent the formation of plaques in arteries. Their primary action is on the cardiovascular system, particularly the heart and blood pressure.

C) This choice is correct. Beta-blockers are commonly prescribed after an MI to reduce the workload of the heart and lower blood pressure. By blocking the effects of adrenaline, they help slow down the heart rate and reduce the force of contraction, thereby decreasing myocardial oxygen demand and improving the heart's efficiency.

D) This choice is incorrect because beta-blockers do not directly prevent blood clot formation in coronary arteries. Anticoagulant or antiplatelet medications are used to reduce the risk of clot formation in individuals at high risk for recurrent heart attacks.

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Correct Answer is A

Explanation

A) This choice is correct. Engaging in regular physical activity and maintaining a healthy weight are effective strategies for reducing the risk of MI. Physical activity helps improve cardiovascular health, manage weight, and reduce other risk factors like hypertension and diabetes.

B) This choice is incorrect because while limiting saturated fat intake is important for heart health, it is not the most effective approach to lower the risk of MI when compared to engaging in physical activity and maintaining a healthy weight.

C) This choice is incorrect because quitting smoking and reducing alcohol consumption are essential for reducing the risk of MI, but they may not be as effective as regular physical activity and weight management.

D) This choice is incorrect because controlling stress through relaxation techniques and counseling is beneficial for overall well-being, but it may not be the most effective approach to reduce the risk of MI when compared to regular physical activity and weight management. Stress management is still an important aspect of cardiovascular health, but it should be combined with other lifestyle changes for optimal risk reduction.

Questions

A. Administer oxygen therapy. B. Elevate the client's legs. C. Obtain a 12-lead electrocardiogram (ECG). D. Initiate cardiopulmonary resuscitation (CPR).

Correct Answer is A

Explanation

A) This choice is correct. Administering oxygen therapy is the priority intervention when a client with MI experiences a drop in blood pressure and becomes restless and anxious. Oxygen can improve tissue oxygenation and help stabilize the client's condition.

B) This choice is incorrect because elevating the client's legs may be beneficial in certain situations, but it is not the priority when the client is experiencing a drop in blood pressure and restlessness due to MI.

C) This choice is incorrect because obtaining a 12-lead ECG is important for assessing and diagnosing MI, but it is not the priority when the client's condition is deteriorating rapidly.

D) This choice is incorrect because initiating cardiopulmonary resuscitation (CPR) is not indicated in this scenario. The client is still conscious and experiencing symptoms, indicating a need for prompt oxygen administration and further assessment.

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A client who experienced an MI is prescribed beta-blocker medication. The client asks the nurse about the purpose of this medication. How should the nurse respond?

Nursing Test Bank

Naxlex Comprehensive Predictor Exams

A client with multiple risk factors for myocardial infarction (MI) asks the nurse how to lower the risk. What should the nurse recommend as the most effective approach?

Correct Answer is A

Explanation

A nurse is caring for a client admitted with myocardial infarction (MI). The client's blood pressure drops, and the client becomes restless and anxious. What intervention should the nurse initiate first?

Correct Answer is A

Explanation

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