Vasoconstriction, sodium retention, and water reabsorption to increase circulating ﬂuid volume and cardiac output are the primary functions of:

Stroke Volume

Renin-Angiotensin-Aldosterone-System (RAAS)

Brain and Atrial natriuretic peptides (BNP & ANP)

Erythropoietin

Answer and Explanation

The Correct Answer is B

Choice A reason: Stroke Volume refers to the amount of blood pumped by the left ventricle of the heart in one contraction, not to the regulation of ﬂuid volume and cardiac output.

Choice B reason: Renin-Angiotensin-Aldosterone-System (RAAS) is responsible for vasoconstriction, sodium retention, and water reabsorption, which helps to increase circulating ﬂuid volume and cardiac output.

Choice C reason: Brain and Atrial natriuretic peptides (BNP & ANP) actually work to decrease blood volume and pressure, not increase them.

Choice D reason: Erythropoietin primarily stimulates red blood cell production and does not directly aﬀect ﬂuid volume or cardiac output.

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Correct Answer is A

Explanation

Choice A reason: Evaluating the eﬀectiveness of opioid analgesics is crucial as pain management is a primary concern for patients experiencing a sickle cell crisis.

Choice B reason: Limiting the patient's intake of oral and IV ﬂuids is not recommended as hydration is important for patients with sickle cell crisis to reduce blood viscosity and improve circulation.

Choice C reason: Teaching the patient about high-protein, high-calorie foods is beneficial for long-term management but is not the immediate nursing intervention during a crisis.

Choice D reason: Encouraging ambulation may be part of recovery but is not the primary intervention during an acute sickle cell crisis due to the risk of pain exacerbation.

A. INR 0.9 B. Hematocrit 28% C. WBC 4500 D. Platelets 60000

Correct Answer is D

Explanation

Choice A reason: An INR of 0.9 is within the normal range (0.8-1.2) and does not support the presence of bruising or bleeding disorders.

Choice B reason: A hematocrit level of 28% is below the normal range (36%-50% for women, 40%-54% for men), indicating anemia, but it does not directly explain bruising or petechiae.

Choice C reason: A WBC count of 4500 is within the normal range (4500-11000), suggesting that there is no active infection or leukocytosis that would explain the bruising.

Choice D reason: A platelet count of 60000 is below the normal range (150000-450000), which can lead to easy bruising and petechiae, supporting the nurse's observation.

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Vasoconstriction, sodium retention, and water reabsorption to increase circulating ﬂuid volume and cardiac output are the primary functions of:

Nursing Test Bank

Naxlex Comprehensive Predictor Exams

Which nursing intervention is important when providing care for a patient with sickle cell crisis?

Correct Answer is A

Explanation

A nurse observes reddish-purple spots and areas of purple bruising on a newly admited patient. Which laboratory results support this assessment finding?

Correct Answer is D

Explanation

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