Resumption of sexual activity after a myocardial infarction is usually determined by

Correct Answer: A

Rationale: In the context of resuming sexual activity after a myocardial infarction (MI), the correct answer is A) extent of the client's recovery. This is because the decision to resume sexual activity should be based on the individual's overall physical recovery, cardiac function, and any potential complications post-MI. Option B) length of time after the myocardial infarction is not the primary determinant for resuming sexual activity as it is more crucial to assess the client's recovery status and cardiac health. Option C) previous history of sexual difficulty may be a consideration, but the immediate focus should be on the current recovery status post-MI. Option D) client's age alone should not dictate the resumption of sexual activity; rather, it should be based on the individual's physical condition and recovery progress. Educationally, this question highlights the importance of considering a holistic approach to post-MI care, including addressing lifestyle factors like sexual activity. It underscores the need for healthcare providers to assess individual recovery and cardiac health status before making recommendations regarding resuming sexual activity, emphasizing patient-centered care and individualized decision-making.

Correct Answer: B

Rationale: In the case of Mr. Curry with possible acute myocarditis, documenting a prior history of rheumatic fever would be the most important. Rheumatic fever is a known risk factor for myocarditis due to its potential to cause inflammation and damage to the heart muscle. This prior illness can be a significant indicator of cardiac complications. Pneumonia, mumps, and chickenpox are not directly associated with an increased risk of myocarditis compared to rheumatic fever. While these illnesses can have complications of their own, they do not have the same direct impact on the heart muscle as rheumatic fever does. Educationally, understanding the relationship between rheumatic fever and myocarditis is crucial for healthcare providers assessing patients with cardiac symptoms. This knowledge helps in identifying high-risk individuals and providing appropriate interventions to prevent further cardiac complications. It also highlights the importance of thorough medical history taking in diagnosing and managing cardiovascular conditions effectively.

Correct Answer: B

Rationale: The correct answer is B because calcium channel blockers decrease the velocity of electrical activity on the AV node, which results in a decreased heart rate and reduced conduction through the AV node. This action helps in treating conditions like hypertension and angina. A: Incorrect. Calcium channel blockers do not increase the preload on the heart; they actually reduce the workload of the heart by decreasing afterload. C: Incorrect. Calcium channel blockers do not block sodium channels in the heart muscle; they specifically target calcium channels. D: Incorrect. Calcium channel blockers do not cause vasoconstriction of coronary arteries; they often lead to vasodilation, improving coronary blood flow.

Correct Answer: A

Rationale: The correct answer is A: For hemostasis. Alpha agonists, such as epinephrine or norepinephrine, are used for hemostasis by inducing vasoconstriction at the site of bleeding, which helps in stopping the bleeding. Option B is incorrect because alpha agonists actually cause vasoconstriction and do not dilate arteries. Option C is incorrect because alpha agonists do not dilate veins. Option D is incorrect because alpha agonists increase afterload by causing vasoconstriction.

Correct Answer: A

Rationale: The correct answer is A: Digoxin. Calcium channel blockers can increase digoxin levels, leading to toxicity. Digoxin is a cardiac glycoside, and concurrent use with calcium channel blockers can potentiate its effects. The other choices (B, C, D) do not have significant drug interactions with calcium channel blockers. Theophylline is metabolized by CYP1A2, hydrochlorothiazide is a diuretic, and fentanyl is an opioid.