A 49-year-old male presents with chest pain.
An EKG reveals ST elevation, and he is diagnosed with myocardial ischemia. Which of the following interventions would be most beneficial for this patient?
Encourage exercise to increase heart rate.
Administer a diuretic to decrease volume.
Give an antibiotic to decrease infection.
Apply oxygen to increase myocardial oxygen supply.
The Correct Answer is D
Choice A rationale
Encouraging exercise to increase heart rate in a patient with myocardial ischemia could potentially worsen the condition. Exercise increases the demand for oxygen in the heart, which may not be met due to the reduced blood flow in ischemia, potentially leading to further damage.
Choice B rationale
Administering a diuretic to decrease volume is not the most beneficial intervention for a patient with myocardial ischemia. While diuretics can reduce the workload of the heart by decreasing blood volume, they do not directly address the issue of reduced blood flow to the heart muscle that characterizes ischemia.
Choice C rationale
Giving an antibiotic to decrease infection is not relevant in this context. Myocardial ischemia is not caused by an infection, but by a reduction in blood flow to the heart muscle, often due to a blockage in one or more of the coronary arteries.
Choice D rationale
Applying oxygen to increase myocardial oxygen supply is the most beneficial intervention for a patient with myocardial ischemia. Oxygen therapy can help to meet the oxygen demand of the heart muscle when blood flow is reduced, alleviating symptoms and preventing further damage.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is B
Explanation
Choice A rationale
Sinus tachycardia is a regular, rapid heart rate caused by rapid firing of the sinoatrial node. It is characterized by a heart rate of greater than 100 beats per minute, and P waves are present before each QRS complex. This does not match the description given.
Choice B rationale
Ventricular tachycardia is a fast, regular beating of the ventricles that may last for only a few seconds or for much longer. In this condition, the ventricular rate is often between 120 and 200 beats per minute, and P waves are not associated with the QRS complexes. This matches the description given.
Choice C rationale
Ventricular fibrillation is a severe condition in which the heart beats with rapid, erratic electrical impulses. This causes the ventricles to quiver uselessly instead of pumping blood. The description does not match this condition.
Choice D rationale
Atrial flutter is a condition that shares similarities with atrial fibrillation, both involve an irregular heartbeat. However, atrial flutter is more organized and less chaotic than atrial fibrillation, which can make it more manageable. The description does not match this condition.
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.
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