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. A client with chronic renal failure is being discharged with a prescription for erythropoietin (Epogen). Which statement indicates that the client understands the action of this medication?

Correct answer: A

Rationale: The correct answer is A: 'It helps my body make red blood cells.' Erythropoietin is a medication that stimulates the production of red blood cells in the body. Clients with chronic renal failure often develop anemia due to decreased erythropoietin production by the kidneys. This medication helps address that issue by increasing red blood cell production. Choices B, C, and D are incorrect because erythropoietin does not prevent infections, help kidneys excrete excess fluid, or assist with breathing; its primary action is to boost red blood cell production.

3. The husband and adult children of a woman who abuses alcohol ask the nurse what approach to use when her drinking behavior disrupts family plans. Which response is best for the nurse to provide?

Correct answer: C

Rationale: The best approach for the nurse to suggest is to make the woman responsible for the consequences of her drinking behaviors. By holding her accountable, she is more likely to recognize the impact of her actions and potentially initiate change. Destroying hidden alcohol supplies (Choice A) might lead to conflict and further secretive behavior. Simply communicating the disruptions caused by her drinking (Choice B) may not effectively address the issue. Including her in family activities regardless of her drinking status (Choice D) could enable the behavior and not address the underlying problem.

4. The nurse is assessing on the first postoperative day following thyroid surgery. Which laboratory value is most important for the nurse to monitor?

Correct answer: A

Rationale: Corrected Rationale: Monitoring calcium levels is crucial post-thyroid surgery to detect hypocalcemia, a common complication due to injury or removal of the parathyroid glands. Monitoring sodium, chloride, or potassium levels is not as vital in the immediate post-thyroid surgery period.

5. The nurse is planning care for a client who is receiving radiation therapy for breast cancer. Which intervention is most important for the nurse to include?

Correct answer: C

Rationale: Keeping the radiated area dry and clean is crucial to prevent skin irritation and infection. Radiation therapy can cause skin changes, making it susceptible to irritation and infection. Using sunscreen (Choice A) is not usually recommended on the radiated area as it can further irritate the skin. Applying lotion (Choice B) may not be suitable as it can trap moisture and cause skin breakdown. While encouraging exercise (Choice D) is important, keeping the area dry and clean takes precedence to prevent complications during radiation therapy.

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