The nurse is administering nitroglycerin intravenously to alleviate chest pain. What is the therapeutic action of this medication?

Increases glomerular filtration, resulting in decreased venous return.

Enhances the contractility of the myocardium, increasing oxygen delivery.

Produces an immediate analgesic effect, relieving chest pain.

Increases the coronary blood supply and decreases the afterload.

Answer and Explanation

The Correct Answer is D

Choice A rationale
Increasing glomerular filtration would result in increased urine output, not decreased venous return. This action is not directly related to the therapeutic action of nitroglycerin.
Choice B rationale
While enhancing the contractility of the myocardium would increase oxygen delivery, this is not the primary action of nitroglycerin. Nitroglycerin primarily works by dilating the blood vessels, which reduces the amount of work the heart has to do and increases the blood supply to the heart muscle.
Choice C rationale
Nitroglycerin does not produce an immediate analgesic effect. While it can relieve chest pain, it does so by increasing blood flow to the heart, not by acting as an analgesic.
Choice D rationale
Nitroglycerin increases the coronary blood supply and decreases the afterload314. By dilating the blood vessels, nitroglycerin reduces the amount of work the heart has to do and increases the blood supply to the heart muscle. This is the primary therapeutic action of nitroglycerin in alleviating chest pain.

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Correct Answer is D

Explanation

Choice A rationale
Aortic regurgitation is a condition where the aortic valve doesn’t close tightly, causing blood to leak back into the left ventricle. This condition can lead to left heart failure but is not typically associated with right heart failure.
Choice B rationale
Mitral regurgitation is a disorder in which the mitral valve on the left side of the heart does not close properly. This condition can lead to left heart failure but is not typically associated with right heart failure.
Choice C rationale
Aortic stenosis is a narrowing of the aortic valve opening. This condition can lead to left heart failure but is not typically associated with right heart failure.
Choice D rationale
Tricuspid regurgitation is a disorder in which the heart’s tricuspid valve does not close properly, causing blood to flow backward into the right atrium. This condition can lead to right heart failure, especially when associated with pulmonary hypertension.

A. Administer Lasix B. Increase myocardial oxygenation C. Obtain one hour of echocardiogram readings D. Decrease the patient’s anxiety

Correct Answer is B

Explanation

Choice A rationale
Administering Lasix (a diuretic) would not be the most immediate intervention for a patient experiencing increased chest pain after taking sublingual nitroglycerin. Lasix is used to treat fluid retention (edema) and swelling caused by congestive heart failure, liver disease, kidney disease, and other medical conditions. It works by causing the kidneys to get rid of unneeded water and salt from the body into the urine.
Choice B rationale
The most important nursing intervention for a patient experiencing increased chest pain after taking sublingual nitroglycerin would be to increase myocardial oxygenation. This can be achieved by administering supplemental oxygen and ensuring the patient is in a position that maximizes respiratory efficiency (such as semi-Fowler’s position). This intervention addresses the immediate life-threatening situation of myocardial ischemia.
Choice C rationale
Obtaining one hour of echocardiogram readings would not be the most immediate intervention for a patient experiencing increased chest pain after taking sublingual nitroglycerin. While an echocardiogram can provide valuable information about the structure and function of the heart, it is not the first step in managing acute chest pain.
Choice D rationale
Decreasing the patient’s anxiety is an important aspect of care, but it is not the most immediate intervention for a patient experiencing increased chest pain after taking sublingual nitroglycerin. The priority is to address the physical cause of the chest pain.

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The nurse is administering nitroglycerin intravenously to alleviate chest pain. What is the therapeutic action of this medication?

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Naxlex Comprehensive Predictor Exams

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Correct Answer is D

Explanation

Correct Answer is B

Explanation

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