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.
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.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is B
Explanation
Choice A rationale
Assessing the need for smoking cessation is a standard part of nursing care, especially for patients with circulatory issues. Smoking can exacerbate circulatory problems and delay wound healing.
Choice B rationale
Applying TED hose to bilateral legs might not be appropriate for this patient. TED hose are compression stockings designed to prevent deep vein thrombosis and promote circulation.
However, in a patient with weak pedal pulses and a full-thickness wound on the leg, the compression from the stockings could potentially worsen circulation to the area and impede wound healing.
Choice C rationale
Consulting physical therapy could be beneficial for this patient. Physical therapists can provide exercises and interventions to improve circulation and mobility, which could help with the patient’s circulatory issues and wound healing.
Choice D rationale
Obtaining an Ankle-Brachial Index (ABI) with a hand-held Doppler could be useful in this situation. The ABI is a simple, non-invasive test that can help diagnose peripheral artery disease (PAD), a condition that could be causing the patient’s weak pedal pulses and wound healing issues.
Correct Answer is D
Explanation
Choice A rationale
Orthostatic hypotension, a form of low blood pressure that happens when you stand up from sitting or lying down, would not typically cause severe chest pain or result in elevated levels of cardiac troponins I and T6.
Choice B rationale
Raynaud’s disease, a condition that causes some areas of your body — such as your fingers and toes — to feel numb and cold in response to cold temperatures or stress, would not typically cause severe chest pain or result in elevated levels of cardiac troponins I and T6.
Choice C rationale
Angina, a type of chest pain caused by reduced blood flow to the heart, could cause severe chest pain, but it would not typically result in elevated levels of cardiac troponins I and T6. Elevated troponin levels are more indicative of damage to the heart muscle, which is not characteristic of angina.
Choice D rationale
A myocardial infarction (MI), also known as a heart attack, could cause severe chest pain and would typically result in elevated levels of cardiac troponins I and T7. Troponins are proteins found in the heart muscle, and levels can rise in the blood when there is damage to the heart, such as during an MI.
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