a client who has a new prescription for warfarin coumadin asks the nurse how the medication works what explanation should the nurse provide
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Nursing Elites

HESI RN

HESI RN CAT Exit Exam

1. A client who has a new prescription for warfarin (Coumadin) asks the nurse how the medication works. What explanation should the nurse provide?

Correct answer: B

Rationale: The correct answer is B: 'It prevents the blood from clotting.' Warfarin works by inhibiting the synthesis of vitamin K-dependent clotting factors in the liver, thereby preventing the formation of blood clots. Choice A is incorrect because warfarin does not dissolve existing blood clots but prevents new ones from forming. Choice C is partially correct but not as specific as choice B in explaining how warfarin works. Choice D is unrelated to the mechanism of action of warfarin and is incorrect.

2. The nurse is planning a health fair for young adults. Which action is most important for the nurse to implement?

Correct answer: B

Rationale: Offering blood pressure screening and monitoring is crucial for young adults as it helps in the early detection and management of hypertension, a condition that often goes unnoticed. High blood pressure can lead to serious health issues if left untreated. While education on smoking cessation, safe sex practices, healthy diet, and exercise are important aspects of overall health promotion, blood pressure screening takes precedence due to its immediate impact on health and the prevention of potential complications.

3. The nurse is administering total parenteral nutrition (TPN) via a central line at 75 ml/hour to a client who had a bowel resection 4 days ago. Which laboratory finding requires the most immediate intervention by the nurse?

Correct answer: D

Rationale: The correct answer is D. A serum calcium level of 7.8 mg/dL requires immediate intervention due to the risk of hypocalcemia. Hypocalcemia can lead to serious complications such as tetany, seizures, and cardiac arrhythmias. The other laboratory findings are within normal limits or slightly elevated, which do not pose an immediate threat to the client's health in this scenario.

4. A nurse is assessing the learning needs of a client who is diagnosed with Addison's disease. Which statement indicates that the client needs further teaching?

Correct answer: B

Rationale: The correct answer is B. A diet high in protein and carbohydrates is not specifically required for Addison's disease. The focus should be on maintaining a balanced diet that is rich in fruits, vegetables, whole grains, and adequate protein sources. Choice A is correct as adherence to medication therapy is crucial in managing Addison's disease. Choice C is correct as caffeine can exacerbate symptoms of Addison's disease. Choice D is correct as dizziness can be a sign of adrenal crisis in Addison's disease, and prompt notification of healthcare providers is essential.

5. Nurses working in labor and delivery are demanding a change in policy because they believe they are required to float more often than nurses on other units. However, floating to labor and delivery is not reciprocated because other nurses are not competent to provide highly specialized obstetrical skills. What action is best for the nurse-manager to implement?

Correct answer: B

Rationale: The best action for the nurse-manager to implement is to propose a method for self-staffing labor and delivery. This approach allows nurses to manage their schedules, ensuring a fair balance of workloads. Requiring cross-training for obstetrics for other nurses (Choice A) may not be feasible or necessary for all units. Reminding nurses that floating is an administrative policy (Choice C) does not address the underlying issue of workload balance. Encouraging nurses to share their feelings with administration (Choice D) may not lead to a concrete solution for the unequal floating concerns.

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