(1 point). Listen.
While reading the history, the nurse notices that the patient has stenosis of a heart valve.
How does the nurse interpret this finding? The valve:.
Permits blood to flow backward.
Fails to shut completely.
Is constricted and narrowed.
Regurgitates and causes insufficiency.
The Correct Answer is C
Choice A rationale:
"Permits blood to flow backward" is more characteristic of valvular regurgitation rather than stenosis. This choice is not accurate in the context of valvular stenosis.
Choice B rationale:
"Fails to shut completely" is a description of valvular regurgitation, not stenosis. This is not the correct choice.
Choice C rationale:
Stenosis of a heart valve means that the valve is constricted and narrowed, limiting the flow of blood through it. This choice is accurate and describes valvular stenosis correctly.
Choice D rationale:
"Regurgitates and causes insufficiency" is a description of valvular regurgitation, not stenosis. This choice is not appropriate in this context.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is C
Explanation
Choice A rationale:
Remodeling of arterial luminal walls is not a direct consequence of insulin resistance. Insulin resistance primarily affects glucose metabolism and can lead to hypertension through the activation of the renin-angiotensin-aldosterone system.
Choice B rationale:
Amino acid homocysteine is associated with cardiovascular disease, but it is not the primary mediator of insulin resistance or hypertension.
Choice C rationale:
Insulin resistance is associated with overactivity of the sympathetic nervous system and activation of the renin-angiotensin-aldosterone system. The renin-angiotensin-aldosterone system plays a significant role in regulating blood pressure, and its overactivity can contribute to hypertension.
Choice D rationale:
Increased afterload effect is a consequence of hypertension rather than a direct association with insulin resistance. Insulin resistance can lead to hypertension through various mechanisms, including sympathetic nervous system activation and renin-angiotensin-aldosterone system activation.
Correct Answer is C
Explanation
Choice A rationale:
Hypertension is not the term used to describe insufficient coronary blood flow. Hypertension refers to high blood pressure, which may contribute to cardiovascular issues, but it does not directly describe the inadequate blood flow.
Choice B rationale:
Metabolic syndrome is also unrelated to insufficient coronary blood flow. Metabolic syndrome is a cluster of conditions that increase the risk of heart disease, stroke, and type 2 diabetes. It doesn't describe the process of inadequate blood flow.
Choice C rationale:
Myocardial ischemia is the correct term to describe insufficient coronary blood flow. Ischemia occurs when there is an inadequate supply of blood to the heart muscle, leading to oxygen deprivation. This term accurately characterizes the condition mentioned in the question.
Choice D rationale:
Diuresis is unrelated to the process of insufficient coronary blood flow. Diuresis refers to increased urine production and does not address the primary issue, which is inadequate blood supply to the heart.
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