Nursing Elites

1. The renin and angiotensin systems help to maintain the balance of sodium and water in the body. What other functions do these systems serve?

• A. Regulating hemoglobin levels
• B. Maintaining a healthy blood volume
• C. Releasing platelets when tissues are injured
• D. Lowering blood volumes

Correct answer: B

Rationale: The correct answer is B: Maintaining a healthy blood volume. The renin and angiotensin systems not only help to regulate sodium and water balance in the body but also play a crucial role in maintaining an adequate blood volume. This is essential for normal blood pressure regulation and overall cardiovascular health. Choices A, C, and D are incorrect because hemoglobin levels are primarily regulated by the bone marrow and erythropoietin, platelets are released in response to blood vessel injury by a different mechanism, and the systems do not focus on lowering blood volumes but rather on maintaining them.

2. A nurse is assessing a client who has acute pancreatitis and is at risk for an acid-base imbalance. For which manifestation of this acid-base imbalance should the nurse assess?

• A. Agitation
• B. Kussmaul respirations
• C. Seizures
• D. Positive Chvosteks sign

Correct answer: B

Rationale:

3. A nurse is caring for a client who has a serum calcium level of 14 mg/dL. Which provider order should the nurse implement first?

• A. Encourage oral fluid intake.
• B. Connect the client to a cardiac monitor.
• C. Assess urinary output.
• D. Administer oral calcitonin (Calcimar).

Correct answer: A

Rationale: The correct answer is to encourage oral fluid intake. With a serum calcium level of 14 mg/dL, the client is at risk of hypercalcemia. Encouraging oral fluid intake helps to promote hydration and can help prevent further elevation of calcium levels. Connecting the client to a cardiac monitor (Choice B) is important but not the first priority in this situation. Assessing urinary output (Choice C) is relevant but does not address the immediate concern of high serum calcium levels. Administering oral calcitonin (Calcimar) (Choice D) may be a treatment option later, but the first step should be to address hydration.

4. Who would have the greatest percentage of body water?

• A. an obese male
• B. a nonobese male
• C. a nonobese female
• D. a newborn

Correct answer: D

Rationale: Newborns have a higher percentage of body water compared to adults due to their higher body fluid content. Factors such as the higher ratio of body surface area to body volume and lower body fat content contribute to this. This is why a newborn would have the greatest percentage of body water. Choices A, B, and C are incorrect because obesity and gender do not determine the percentage of body water in individuals. Therefore, the correct answer is a newborn.

5. A nurse assesses a client who is prescribed furosemide (Lasix) for hypertension. For which acid-base imbalance should the nurse assess to prevent complications of this therapy?

• A. Respiratory acidosis
• B. Respiratory alkalosis
• C. Metabolic acidosis
• D. Metabolic alkalosis

Correct answer: D

Rationale:

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