Which of the following statements is FALSE regarding Coronary Artery Disease (CAD)?
Men present with atypical symptoms such as nausea and indigestion
The most common symptom of CAD is chest pain
The most common cause of CAD is atherosclerosis
Elevated LDL is a risk factor for developing CAD
The Correct Answer is A
Choice A rationale:
It is inaccurate to state that men exclusively present with atypical symptoms of CAD. While men are more likely than women to experience atypical symptoms, this does not mean that they never experience chest pain or other typical symptoms.
Chest pain remains the most common symptom of CAD in both men and women. However, it's important to recognize that both genders can experience a range of symptoms, including atypical ones.
Attributing atypical symptoms solely to men can lead to misdiagnosis or delayed diagnosis of CAD in women. This is because women are more likely to present with atypical symptoms, and healthcare professionals may not recognize these symptoms as indicative of CAD.
It's crucial to consider a broad spectrum of symptoms when evaluating patients for potential CAD, regardless of gender.
Choice B rationale:
Chest pain is indeed the most common symptom of CAD. It typically manifests as a feeling of pressure, squeezing, or tightness in the chest, often radiating to the left arm, jaw, neck, or back.
Chest pain usually occurs during exertion or emotional stress and is relieved by rest or nitroglycerin.
Choice C rationale:
Atherosclerosis is the most common underlying cause of CAD. It's a condition characterized by the buildup of plaque within the arteries, leading to narrowing and hardening of the vessels.
This plaque buildup can restrict blood flow to the heart muscle, resulting in ischemia (lack of oxygen) and the symptoms of CAD.
Choice D rationale:
Elevated LDL cholesterol is a significant risk factor for developing CAD. LDL cholesterol is often referred to as "bad" cholesterol because it can contribute to plaque buildup in the arteries.
Managing LDL cholesterol levels through lifestyle modifications and medications, if necessary, is crucial for reducing the risk of CAD.
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Related Questions
Correct Answer is B
Explanation
Choice B rationale:
LDL (low-density lipoprotein) cholesterol is often referred to as "bad" cholesterol. It contributes to the buildup of plaque in the arteries, which narrows the arteries and can lead to coronary artery disease (CAD). CAD is a major risk factor for heart attack and stroke.
HDL (high-density lipoprotein) cholesterol is often referred to as "good" cholesterol. It helps to remove LDL cholesterol from the arteries and transport it back to the liver, where it can be broken down and removed from the body. Therefore, a high HDL level is protective against heart disease.
An elevated LDL level and a lowered HDL level are both associated with an increased risk of CAD. This is because the elevated LDL level contributes to plaque buildup, while the lowered HDL level means that there is less "good" cholesterol available to remove the "bad" cholesterol from the arteries.
Therefore, the statement "Increased LDL and decreased HDL increase my risk of coronary artery disease" indicates an understanding of the significance of these cholesterol levels.
Choice A rationale:
This statement is incorrect. An increased LDL level will actually increase the amount of cholesterol deposited on the artery walls.
Choice C rationale:
This statement is also incorrect. A decreased HDL level will decrease the amount of cholesterol moved away from the artery walls.
Choice D rationale:
This statement is incorrect. Increased LDL has the potential to increase, not decrease, the risk of heart disease.
Correct Answer is C
Explanation
Choice A rationale:
While educating the patient about the pathophysiology of acute coronary artery disease (ACAD) is important, it is not the priority intervention during an acute episode.
The patient is likely experiencing significant discomfort and anxiety, and their ability to process information may be impaired.
Providing immediate relief of symptoms and stabilizing the patient's condition take precedence over education at this time.
Choice B rationale:
Supplemental oxygen may be beneficial for patients with ACAD, but it is not the highest priority intervention.
Oxygen therapy can improve oxygen saturation levels in the blood, but it does not directly address the underlying issue of coronary artery occlusion.
It is important to administer nitroglycerin first to dilate the coronary arteries and improve blood flow to the heart muscle.
Choice C rationale:
Sublingual nitroglycerin is a vasodilator that relaxes and widens blood vessels, improving blood flow to the heart muscle.
It is a first-line medication for the treatment of acute angina (chest pain) and is often used in the setting of ACAD.
Nitroglycerin can rapidly relieve chest pain and other symptoms of ischemia, such as shortness of breath, and can help prevent further damage to the heart muscle.
Choice D rationale:
Staying with the patient to decrease anxiety is important, but it is not the priority intervention.
While providing emotional support can help to calm the patient and reduce stress, it does not directly address the underlying issue of myocardial ischemia.
It is crucial to administer nitroglycerin to dilate the coronary arteries and improve blood flow to the heart muscle.
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