A nurse is providing teaching to a client who has coronary artery disease. Which of the following statements should the nurse include in the teaching to explain the correlation between changes in the coronary arteries and manifestations that occur?
"The heart and the coronary arteries weaken, leading to poor perfusion and resulting in angina."
"Coronary arteries become more elastic causing the arteries to stretch as individuals age causing the heart not to receive enough oxygen."
"Coronary arteries decrease in diameter leading to insufficient blood, oxygen, and nutrients reaching the heart muscle." "Manifestations occur due to dilation of coronary arteries with increased blood flow causing increased pressure."
"Coronary arteries decrease in diameter leading to insufficient blood, oxygen, and nutrients reaching the heart muscle."
The Correct Answer is D
A. "The heart and the coronary arteries weaken, leading to poor perfusion and resulting in angina": This statement is inaccurate. While angina can result from poor perfusion to the heart muscle, it is not typically due to weakening of the heart and coronary arteries. Angina often occurs due to coronary artery narrowing or blockage, leading to reduced blood flow and oxygen delivery to the myocardium.
B. "Coronary arteries become more elastic causing the arteries to stretch as individuals age causing the heart not to receive enough oxygen": This statement is incorrect. Coronary arteries do not become more elastic with age; in fact, they tend to become less elastic due to the development of atherosclerosis, which leads to arterial stiffening and decreased compliance. Atherosclerosis can cause narrowing or occlusion of the coronary arteries, resulting in reduced oxygen delivery to the heart muscle.
C. "Coronary arteries decrease in diameter leading to insufficient blood, oxygen, and nutrients reaching the heart muscle. Manifestations occur due to dilation of coronary arteries with increased blood flow causing increased pressure": This statement is partially incorrect. While it accurately describes the consequences of coronary artery narrowing (decrease in diameter) leading to insufficient blood, oxygen, and nutrient delivery to the heart muscle, the second part of the statement regarding dilation of coronary arteries with increased blood flow causing increased pressure is inaccurate. Coronary artery dilation is a compensatory response to increased demand for oxygen, aiming to improve blood flow to the myocardium. However, dilation alone does not increase pressure in the coronary arteries.
D. "Coronary arteries decrease in diameter leading to insufficient blood, oxygen, and nutrients reaching the heart muscle": This statement is accurate. Coronary artery disease (CAD) involves the progressive narrowing of the coronary arteries due to atherosclerosis, which reduces blood flow to the myocardium. As the arteries narrow, there is insufficient blood, oxygen, and nutrients reaching the heart muscle, leading to manifestations such as angina, myocardial ischemia, and potentially myocardial infarction.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is D
Explanation
A. Apply soft restraints to wrists and chest: Using restraints should only be considered as a last resort and should not be the first intervention for managing delirium. Restraints can exacerbate agitation and increase the risk of complications such as skin breakdown, musculoskeletal injury, and psychological distress. Therefore, applying restraints should not be the first action taken by the nurse.
B. Administer antipsychotic medications as prescribed: While antipsychotic medications may be used to manage symptoms of delirium in some cases, they should not be the first intervention for preventing client injury. Additionally, the use of antipsychotics in the ICU requires careful consideration due to potential adverse effects, such as sedation, hypotension, and prolongation of the QT interval. The decision to administer antipsychotic medications should be based on a comprehensive assessment and in consultation with the healthcare team.
C. Administer sedative medications as prescribed: Administering sedative medications may help calm an agitated client with delirium, but it should not be the first intervention for preventing client injury. Sedatives can further impair cognition and increase the risk of falls or other complications. Like antipsychotic medications, the use of sedatives should be based on a thorough assessment and in collaboration with the healthcare team, rather than being the initial action taken by the nurse.
D. Arrange for one-on-one observation for the client: Delirium in the intensive care unit (ICU) is a serious condition that can lead to confusion, disorientation, and an increased risk of injury to the client. The priority intervention for preventing client injury in this situation is to ensure constant monitoring and supervision. By arranging for one-on-one observation, the nurse can provide continuous monitoring of the client's behavior, assess for changes or signs of agitation, and intervene promptly to prevent falls or other injuries.
Correct Answer is D
Explanation
A. Stress can contribute to the development of atrial flutter, but it is not the highest risk factor compared to other options.
B. While electrolyte imbalances resulting from vomiting and diarrhea can predispose someone to arrhythmias, they are not as significant a risk factor for atrial flutter as other conditions.
C. A family history of atrial flutter may increase the likelihood of developing the condition, but it is not as significant a risk factor compared to other options.
D. A history of myocardial infarction and stent placement indicates underlying heart disease, which is a significant risk factor for developing atrial flutter. Cardiac events like myocardial infarction can lead to structural changes in the heart, such as scarring or remodeling, which can predispose individuals to atrial flutter. Therefore, this client is at the highest risk for developing atrial flutter among the options provided.
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