(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:
Phosphorus. Rationale: Dysfunction in the normal secretion of natriuretic hormones is more likely to affect sodium and water balance, not phosphorus. Phosphorus levels are regulated by other mechanisms in the body and may not be directly influenced by natriuretic hormones. Choice A is incorrect.
Choice B rationale:
Calcium. Rationale: Calcium levels are not typically influenced by natriuretic hormones. Calcium regulation is primarily under the control of parathyroid hormone (PTH) and calcitonin. Dysfunction in natriuretic hormone secretion would not directly impact calcium levels. Choice B is incorrect.
Choice C rationale:
Sodium. Rationale: Natriuretic hormones, such as atrial natriuretic peptide (ANP) and brain natriuretic peptide (BNP), play a crucial role in regulating sodium balance in the body. If a patient has dysfunction in the normal secretion of these hormones, it can lead to sodium imbalance, potentially causing sodium retention and fluid overload. Therefore, monitoring sodium levels is essential in such cases. Choice C is the correct answer.
Choice D rationale:
Aldosterone. Rationale: Aldosterone is a hormone that primarily regulates sodium and potassium balance in the body. Dysfunction in natriuretic hormone secretion is not directly related to aldosterone. Therefore, monitoring aldosterone levels would not be the most appropriate action in this context. Choice D is incorrect. .
Correct Answer is B
Explanation
Choice A rationale:
Pressure ulcers are not typically related to blood pooling in superficial veins due to prolonged standing. Pressure ulcers are usually caused by sustained pressure on the skin and underlying tissues, leading to tissue damage.
Choice B rationale:
Varicose veins can develop when blood pools in the superficial veins, often due to prolonged standing or increased pressure on the veins. This can lead to the dilation and twisting of the veins, resulting in varicose veins. Therefore, if a person stands for long periods of time, the nurse should assess for the development of varicose veins.
Choice C rationale:
Emboli and thromboangitis obliterans (Buerger's disease) are not directly related to blood pooling in superficial veins due to prolonged standing. Emboli are blood clots or other materials that travel through the bloodstream and can potentially block vessels in various parts of the body. Thromboangitis obliterans is a rare inflammatory condition that primarily affects the blood vessels of the extremities.
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