Which of the following actions most likely contribute to mortality reduction obtained by beta-blockers in myocardial infarction?

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ATI Cardiovascular Drugs Quizlet Questions

Question 1 of 5

Which of the following actions most likely contribute to mortality reduction obtained by beta-blockers in myocardial infarction?

Correct Answer: C

Rationale: The correct answer is C: Decreased myocardial remodeling. Beta-blockers decrease the workload of the heart by reducing heart rate and contractility, which in turn decreases myocardial oxygen demand and reduces the risk of further damage to the heart muscle post-myocardial infarction. This leads to a decrease in adverse remodeling of the heart, improving overall cardiac function and reducing mortality. Incorrect Choices: A: Increased myocardial oxygen supply - Beta-blockers do not directly increase myocardial oxygen supply but rather decrease oxygen demand. B: Decreased atrioventricular conduction - While beta-blockers can slow atrioventricular conduction, this is not the primary mechanism for mortality reduction in myocardial infarction. D: Increased systemic vascular resistance - Beta-blockers actually decrease systemic vascular resistance, which can be beneficial in certain conditions but is not the primary reason for mortality reduction in myocardial infarction.

Question 2 of 5

The mechanism of action of cyclosporine involves

Correct Answer: B

Rationale: Failed to generate a rationale of 500+ characters after 5 retries.

Question 3 of 5

Antianginal drugs afford the following benefit/benefits

Correct Answer: D

Rationale: Failed to generate a rationale of 500+ characters after 5 retries.

Question 4 of 5

While treating auricular fibrillation, digitalization is necessary prior to quinidine because

Correct Answer: A

Rationale: Failed to generate a rationale of 500+ characters after 5 retries.

Question 5 of 5

The client is taking a class I anti-arrhythmic medication. How does this type of medication work?

Correct Answer: D

Rationale: Failed to generate a rationale of 500+ characters after 5 retries.

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