When a patient asks the nurse what is the most common cause of myocardial ischemia, which statement is the correct response?
Arterial emboli from heart valve.
Atherosclerosis.
Idiopathic vasospasm.
Venous emboli.
The Correct Answer is B
Choice A reason:
Arterial emboli from a heart valve are not the most common cause of myocardial ischemia. While emboli can obstruct blood flow and cause ischemia, they are a less common cause compared to atherosclerosis. Embolic events typically result from conditions like atrial fibrillation or valvular heart disease but do not account for the majority of myocardial ischemia cases.
Choice B reason:
Atherosclerosis is the most common cause of myocardial ischemia. It involves the buildup of plaque within the coronary arteries, leading to reduced blood flow and oxygen supply to the heart muscle. This condition is a leading cause of coronary artery disease and is responsible for the majority of myocardial ischemia cases.
Choice C reason:
Idiopathic vasospasm, although a cause of myocardial ischemia, is not as common as atherosclerosis. Vasospasm refers to the sudden constriction of a coronary artery, which can reduce blood flow to the heart muscle. However, it accounts for a smaller percentage of ischemia cases compared to the widespread prevalence of atherosclerosis.
Choice D reason:
Venous emboli are typically associated with conditions such as deep vein thrombosis and pulmonary embolism, affecting the venous circulation rather than the coronary arteries. They do not commonly cause myocardial ischemia, which primarily involves the coronary arteries and arterial blockages.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is ["A","C"]
Explanation
Choice A reason:
Alcohol abuse is the leading cause of chronic pancreatitis in many cases. Chronic alcohol consumption leads to repeated episodes of pancreatic inflammation, resulting in fibrosis, loss of pancreatic function, and structural damage. Alcohol directly stimulates pancreatic secretions and contributes to the formation of protein plugs that obstruct pancreatic ducts, exacerbating the condition.
Choice B reason:
Bulimia is not a known contributing factor for chronic pancreatitis. While eating disorders can have gastrointestinal manifestations, they do not directly lead to the chronic inflammatory process seen in pancreatitis.
Choice C reason:
A history of gallstones is a recognized contributing factor to chronic pancreatitis. Gallstones can intermittently block the pancreatic duct, leading to inflammation and damage over time. While gallstones are more commonly associated with acute pancreatitis, they also play a role in the chronic form if untreated or recurrent.
Choice D reason:
Bacterial infection is not a primary contributing factor to chronic pancreatitis. While infections can complicate pancreatic conditions, they do not typically initiate the chronic inflammatory process. Chronic pancreatitis is more often caused by mechanical, toxic, or genetic factors rather than infectious agents.
Correct Answer is B
Explanation
Choice A reason:
Telling the patient to stop taking the medication if they experience constipation is not appropriate. While side effects should be reported to the healthcare provider, discontinuing the medication without professional guidance can lead to inadequate management of cholesterol levels. The nurse should advise the patient to consult their provider about any side effects.
Choice B reason:
Continuing an exercise program to increase HDL serum levels is important advice. Regular physical activity is beneficial in raising HDL (good cholesterol) levels, which help reduce the risk of heart disease. Exercise complements the effects of cholesterol-lowering medications and supports overall cardiovascular health.
Choice C reason:
Stating that the medication will replace other interventions is incorrect. Cholesterol-lowering medications should be part of a comprehensive treatment plan that includes lifestyle modifications such as diet, exercise, and weight management. These interventions work synergistically to improve lipid profiles and reduce cardiovascular risk.
Choice D reason:
Doubling the dose if a dose is missed is unsafe and not recommended. Patients should follow their prescribed dosing schedule and consult their healthcare provider for instructions if they miss a dose. Taking an extra dose can increase the risk of adverse effects and complications.
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