Which change occurs first, making patients susceptible to coronary artery disease?
Formation of thrombus in the coronary artery.
Formation of fibrous plaque in the endothelium.
Reduction of blood flow through the coronary arteries.
Development of fatty streaks in the smooth muscles of the endothelium.
The Correct Answer is D
Choice A rationale:
Thrombus formation is a later stage event in coronary artery disease (CAD) and occurs after the development of fatty streaks. Thrombus formation usually happens due to the rupture of atherosclerotic plaques, leading to platelet aggregation and clot formation.
Choice B rationale:
Formation of fibrous plaque in the endothelium is a progression that occurs after the initial development of fatty streaks. Fibrous plaques are formed as a response to the inflammation caused by fatty deposits. They are more stable than fatty streaks but can still lead to narrowing of the arteries.
Choice C rationale:
Reduction of blood flow through the coronary arteries is a consequence of atherosclerosis, which occurs after the initial development of fatty streaks. As the fatty deposits accumulate, they narrow the arteries, leading to reduced blood flow. However, this is not the initial change that makes patients susceptible to CAD.
Choice D rationale:
Development of fatty streaks in the smooth muscles of the endothelium is the initial change that occurs in the development of atherosclerosis, making patients susceptible to coronary artery disease. Fatty streaks are composed of lipid-laden macrophages and smooth muscle cells. Over time, these fatty streaks can progress into fibrous plaques and eventually lead to complications such as thrombus formation and reduced blood flow.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is B
Explanation
Choice A rationale:
Flossing using thick tape floss can cause trauma to the gums and may lead to bleeding in patients with thrombocytopenia. Patients with low platelet counts are at risk of excessive bleeding from minor injuries, and using thick tape floss could potentially harm the gums and exacerbate bleeding.
Choice B rationale:
Shaving using an electric razor is a safe option for patients with thrombocytopenia. Electric razors do not pose a significant risk of cuts or nicks, reducing the likelihood of bleeding, which is crucial for patients with low platelet counts.
Choice C rationale:
Wearing flip-flops to go walking may not be the safest option for a patient with thrombocytopenia. If the patient accidentally stubs their toe or injures their foot while wearing flip-flops, it could lead to bleeding. Closed-toe, comfortable shoes provide better protection against foot injuries.
Choice D rationale:
Brushing using a stiff-bristle toothbrush can be harmful to the gums, especially for patients with thrombocytopenia. Stiff-bristle toothbrushes can cause gum irritation and bleeding. Patients with low platelet counts should use a soft-bristle toothbrush to minimize the risk of gum injury.
Correct Answer is ["B","D"]
Explanation
Choice A rationale:
Palpitations are not directly related to a low hemoglobin level. They can occur due to various cardiac conditions but are not specific to anemia.
Choice B rationale:
Conjunctival pallor is a common physical finding in patients with low hemoglobin levels (anemia) Anemia leads to reduced oxygen-carrying capacity, causing paleness in mucous membranes such as the conjunctiva.
Choice C rationale:
Sternal tenderness is not a typical finding associated with low hemoglobin levels. It is more often associated with conditions affecting the sternum or adjacent structures, such as infections or inflammation.
Choice D rationale:
A heart rate of 104 beats/min can be a compensatory response to anemia. When the body senses reduced oxygen levels due to anemia, the heart rate may increase to pump more blood and oxygen to vital organs, attempting to compensate for the low hemoglobin levels.
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