The nurse is providing care for a patient with the following tracing on the electrocardiogram (ECG) for atrial fibrillation. What prescription should the nurse anticipate from the primary healthcare provider (PHCP)?
Adenosine
Diltiazem
Atropine
Captopril
The Correct Answer is B
Choice A rationale: Adenosine Adenosine is a naturally occurring substance that relaxes and dilates blood vessels. It also affects the electrical activity of the heart. Adenosine is used to help restore normal heartbeats in people with certain heart rhythm disorders. However, it is not typically used for atrial fibrillation.
Choice B rationale: Diltiazem Diltiazem belongs to a class of medications called calcium-channel blockers. It works by relaxing the blood vessels so the heart does not have to pump as hard. Diltiazem also increases the supply of blood and oxygen to the heart. It is used in adults alone or in combination with other medications to treat hypertension (high blood pressure) or symptoms of angina (chest pain). Diltiazem injection is used in adults to treat certain heart rhythm disorders such as atrial fibrillation.
Choice C rationale: Atropine Atropine is a tropane alkaloid and anticholinergic medication used to treat certain types of nerve agent and pesticide poisonings as well as some types of slow heart rate, and to decrease saliva production during surgery. However, it is not typically used for atrial fibrillation.
Choice D rationale: Captopril Captopril is used in adults alone or in combination with other medications to treat high blood pressure (hypertension) and congestive heart failure.
Captopril is also used to improve survival and reduce the risk of heart failure after a heart attack in patients with a heart condition called left ventricular hypertrophy (enlargement of the walls of the left side of the heart)4. However, it is not typically used for atrial fibrillation.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is D
Explanation
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.
Correct Answer is A
Explanation
Choice A rationale
Left heart failure is a common cause of right heart failure. When the left side of the heart is unable to pump blood efficiently, it can cause increased pressure in the lungs, which can then lead to right heart failure.
Choice B rationale
Pericarditis, an inflammation of the sac-like covering around the heart, is not typically a direct cause of right heart failure.
Choice C rationale
While hypertension, or high blood pressure, can contribute to heart failure, it typically affects the left side of the heart more than the right.
Choice D rationale
Acute pneumonia, an infection that inflames the air sacs in one or both lungs, is not typically a direct cause of right heart failure.
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