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 C
Explanation
Choice A rationale
Heberden’s nodes are bony swellings that occur at the distal interphalangeal finger joint, a sign of osteoarthritis. They are not associated with infective endocarditis (IE).
Choice B rationale
Bouchard’s nodes are similar to Heberden’s nodes but occur at the proximal interphalangeal finger joint. They are also a sign of osteoarthritis and not associated with IE.
Choice C rationale
Janeway lesions are flat, painless, red or purple spots on the palms of the hands or the soles of the feet. They are associated with IE and are caused by septic emboli which are small clots filled with bacteria. These emboli can lodge in small blood vessels, causing these characteristic lesions.
Choice D rationale
Tophi are hard, uric acid deposits under the skin. They are a sign of chronic gout, not IE.
Correct Answer is D
Explanation
Choice A rationale
Pulsus paradoxus, an exaggerated decrease in systolic blood pressure during inspiration, can be a sign of several conditions, including pericardial tamponade, constrictive pericarditis, and restrictive cardiomyopathy.
Choice B rationale
Exudate, a fluid with a high protein content that leaks out of blood vessels due to inflammation, is not typically associated with the symptoms described.
Choice C rationale
An aneurysm, a bulge or ballooning in a blood vessel, could potentially cause the symptoms described, but it is not the most concerning finding given the symptoms of edema, hepatomegaly, and muffled heart sounds.
Choice D rationale
Tamponade, a serious condition in which fluid or blood fills the pericardial sac, compressing the heart and preventing it from pumping effectively, could cause the symptoms described and would be the most concerning finding.
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