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
A pleural friction rub is an audible raspy breathing sound, a medical sign present in some patients with pleurisy and other conditions affecting the chest cavity. It is not a typical symptom of cardiac tamponade.
Choice B rationale
Distended neck veins are a result of the collapsed blood vessels that should return blood to the heart. This is a common symptom of cardiac tamponade.
Choice C rationale
Widening pulse pressure occurs with valvular heart disease, not typically with cardiac tamponade.
Choice D rationale
Bradycardia, or a slower-than-normal heart rate, is not typically associated with cardiac tamponade.
Correct Answer is B
Explanation
Choice A rationale
While fasting may be required before certain procedures, it is not the most crucial piece of information that the nurse needs to relay to the healthcare provider prior to a cardiac catheterization and coronary angiogram.
Choice B rationale
A shellfish allergy is crucial information because the dye used in an angiogram can cause an allergic reaction in people who are allergic to shellfish.
Choice C rationale
Although a previous heart attack is significant medical history, it is not the most crucial piece of information to relay prior to this procedure.
Choice D rationale
The rating of the patient’s pedal pulses is not the most crucial piece of information to relay prior to this procedure.
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