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. Comply with compression therapy:
Compression therapy typically refers to the use of compression garments or devices to improve circulation and reduce swelling in the extremities, particularly in conditions such as venous insufficiency or deep vein thrombosis.
While compression therapy may be beneficial for certain circulatory disorders, it is not a standard treatment for cardiac tamponade.
Cardiac tamponade is a medical emergency characterized by the accumulation of fluid in the pericardial sac, leading to increased pressure on the heart and impaired cardiac function.
Treatment for cardiac tamponade involves prompt recognition and intervention to relieve the pressure on the heart, such as pericardiocentesis or surgical drainage of the pericardial effusion.
B. Monitor wounds on lower extremities:
Monitoring wounds on the lower extremities is essential for assessing healing, preventing complications such as infection, and promoting overall wound care.
However, monitoring wounds on the lower extremities is not directly related to the management or monitoring of cardiac tamponade.
In cardiac tamponade, the focus of monitoring is on assessing signs and symptoms of cardiac compromise, such as hypotension, tachycardia, dyspnea, and pulsus paradoxus, rather than wound care.
C. Take antiplatelet medications as ordered:
Antiplatelet medications, such as aspirin or clopidogrel, are commonly prescribed to prevent platelet aggregation and reduce the risk of thrombotic events, particularly in patients with cardiovascular disease or a history of myocardial infarction or stroke.
While antiplatelet medications may be part of the long-term management of certain cardiac conditions, they are not specific to the treatment or monitoring of cardiac tamponade.
The primary treatment for cardiac tamponade involves interventions to relieve the pressure on the heart and restore cardiac function, such as pericardiocentesis or surgical drainage of the pericardial effusion.
D. Monitor for gradual onset of symptoms:
Phase II of cardiac tamponade is characterized by a gradual onset of symptoms as the pressure within the pericardial sac increases, leading to impaired cardiac filling and decreased cardiac output.
Symptoms may include dyspnea, fatigue, orthopnea, tachycardia, and chest discomfort, which may develop gradually over time.
Early recognition of symptoms is crucial for prompt diagnosis and intervention to prevent further deterioration and improve outcomes in patients with cardiac tamponade.
Correct Answer is D
Explanation
A. Open-angle glaucoma: Open-angle glaucoma typically presents with increased intraocular pressure and gradual loss of peripheral vision, not with bright flashes of light and dark floating spots.
B. Macular degeneration: Macular degeneration is characterized by central vision loss, not by bright flashes of light and dark floating spots.
C. Meniere’s disease: Meniere’s disease is a disorder of the inner ear characterized by episodes of vertigo, hearing loss, and tinnitus. It does not typically cause bright flashes of light and dark floating spots in the visual field.
D. Retinal detachment: Trauma, such as being tackled while playing football, can lead to retinal detachment, which can manifest with symptoms such as bright flashes of light (photopsia) and dark floating spots (floaters) in the affected eye. This condition is considered a medical emergency and requires prompt evaluation and treatment to prevent permanent vision loss.
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