Nursing Elites

1. The renin-angiotensin-aldosterone system plays an important role in maintaining blood pressure. Which compound in this system is most powerful at raising blood pressure?

• A. Angiotensin I
• B. Angiotensin II
• C. Angiotensin III
• D. Renin

Correct answer: B

Rationale: Angiotensin II is the most potent compound in the renin-angiotensin-aldosterone system for raising blood pressure. It acts as a powerful vasoconstrictor, leading to increased systemic vascular resistance. Angiotensin II is formed from angiotensin I through the action of the angiotensin-converting enzyme. While renin initiates the cascade by converting angiotensinogen to angiotensin I, it is angiotensin II that exerts the strongest pressor effect.

2. Which is the priority nursing assessment when providing care for an infant at risk for dehydration?

• A. Urine output
• B. Urine specific gravity
• C. Vital signs
• D. Daily weight

Correct answer: D

Rationale: The correct answer is Daily weight. Daily weight is a crucial assessment in infants at risk for dehydration because changes in weight can indicate fluid balance and dehydration status. It is essential to monitor daily weight to promptly identify and manage dehydration in infants.

3. The patient with bipolar disorder is being treated with lithium and has a new prescription for captopril for hypertension. The combination of these two drugs makes which assessment particularly important?

• A. Potassium level
• B. Lithium level
• C. Creatinine level
• D. Blood pressure

Correct answer: B

Rationale: When captopril, an ACE inhibitor, is combined with lithium, it can lead to lithium accumulation. Therefore, monitoring lithium levels is crucial to prevent toxicity. While ACE inhibitors like captopril can cause hyperkalemia, renal insufficiency, and hypotension, the risk of these effects is not increased by the combination of lithium and captopril.

4. How would you best evaluate the clinical usefulness of a test?

• A. Decide on using a single test for all clients and families
• B. Consider what needs to be collected and discuss with colleagues
• C. Ask the family for a test suggestion
• D. Read the statistical methods used to validate the scores

Correct answer: B

Rationale: When evaluating the clinical usefulness of a test, the best approach is to consider what specific information needs to be collected based on the clients' needs. Discussing these considerations with colleagues helps in ensuring that the chosen test is appropriate and beneficial for the individuals being assessed. Choice A is incorrect as using a single test for all clients may not account for individual differences. Choice C is incorrect as the family's suggestion alone may not align with clinical needs. Choice D is incorrect as understanding statistical methods alone may not fully capture the clinical utility of a test.

5. Which strategy is most effective in preventing existing challenging behaviors?

• A. Ignoring the behaviors
• B. Individualized interventions
• C. Providing flexible rules
• D. Punishment

Correct answer: B

Rationale: Individualized interventions are tailored to address the specific needs and triggers of the individual's challenging behaviors. By customizing the approach to each person, it increases the likelihood of effectively preventing and managing the existing challenging behaviors.

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