The organic nitrates relieve angina pain by veins and coronary arteries.
reducing
constricting
dissolving
dilating
The Correct Answer is D
A. Organic nitrates, such as nitroglycerin, dilate (widen) veins and coronary arteries, leading to decreased preload and afterload, which helps relieve angina pain.
B. Constricting veins and coronary arteries would exacerbate angina symptoms by reducing blood flow to the heart muscle.
C. Dissolving veins and coronary arteries is not a mechanism of action for organic nitrates in the treatment of angina.
D. Dilating veins and coronary arteries is the primary mechanism of action for organic nitrates, resulting in increased blood flow to the heart muscle and relief of angina pain.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is ["C","D"]
Explanation
A. Green beans and bananas do not contain high amounts of omega-3 fatty acids.
B. Bananas do not contain significant amounts of omega-3 fatty acids.
C. Flax seeds are a rich source of alpha-linolenic acid (ALA), a type of omega-3 fatty acid.
D. Salmon is a fatty fish rich in omega-3 fatty acids, particularly eicosapentaenoic acid (EPA) and docosahexaenoic acid (DHA).
E. Sunflower seeds are not a significant source of omega-3 fatty acids; they are higher in omega-6 fatty acids.
Correct Answer is A
Explanation
A. Lithium toxicity can occur if the patient becomes dehydrated while taking lithium, as dehydration can lead to higher concentrations of lithium in the blood.
B. Increased effectiveness is not a consequence of dehydration while taking lithium.
C. Dehydration would not typically lead to the need to increase the lithium dosage but rather to the risk of toxicity.
D. Dehydration can lead to higher, not lower, serum lithium levels, increasing the risk of toxicity.
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