What classification of antianginal medications is also used for coronary artery spasms?
ACE inhibitors
Calcium channel blockers
Beta blockers
Thrombolytics
The Correct Answer is B
A. ACE inhibitors primarily lower blood pressure and are not commonly used to treat coronary artery spasms.
B. Calcium channel blockers are commonly used to treat both stable angina and coronary artery spasms because they relax blood vessels, improving blood flow to the heart.
C. Beta blockers primarily reduce heart rate and blood pressure and are not typically used to treat coronary artery spasms.
D. Thrombolytics are used to dissolve blood clots and are not indicated for coronary artery spasms.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is C
Explanation
A. Organic nitrates do not increase contractility and heart rate; they typically decrease myocardial oxygen demand.
B. Organic nitrates do not slow heart rate or decrease contractility of the heart.
C. The mechanism of action of organic nitrates in the treatment of angina is the relaxation of arterial and venous smooth muscle, leading to vasodilation and decreased myocardial oxygen demand.
D. Organic nitrates do not increase peripheral resistance; they typically cause vasodilation.
Correct Answer is D
Explanation
Explanation:
A. Adequate hydration is important to prevent lithium toxicity; decreasing fluid intake is not recommended.
B. Constipation can slow the excretion of lithium and may increase the risk of toxicity, but it is not the most appropriate preventive measure.
C. Sudden changes in sodium intake can affect lithium levels, so restricting sodium-rich foods without medical advice is not advisable.
D. Clients should be cautious with physical activity in hot weather, as excessive sweating can lead to dehydration, increasing the risk of lithium toxicity.
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