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. While teaching a group of adults about health promotion activities, a nurse identifies a behavior that poses the most significant risk factor for the development of skin cancer. Which behavior should the nurse address?

Correct answer: B

Rationale: Using tanning beds is the most significant risk factor for developing skin cancer. Ultraviolet (UV) radiation from tanning beds damages the skin and increases the risk of skin cancer. Consuming a high-fat diet, smoking cigarettes, and drinking alcohol are unhealthy behaviors but are not directly linked to the development of skin cancer like UV exposure from tanning beds.

3. A 20-year-old male client is diagnosed with Ewing's sarcoma following examination for a knee injury. Which instruction is most important for the nurse to provide the client?

Correct answer: D

Rationale: The correct answer is to instruct the client to seek treatment for the sarcoma immediately. Ewing's sarcoma is an aggressive cancer, and prompt treatment is crucial for improving prognosis. Option A is incorrect because while pain management is important, addressing the underlying cause (sarcoma) is the priority. Option B is not as critical as seeking treatment for the sarcoma itself. Option C is not the most important instruction as the primary concern is addressing the cancer diagnosis.

4. In preparing to administer a scheduled dose of intravenous furosemide (Lasix) to a client with heart failure, the nurse notes that the client's B-Type Naturetic peptide (BNP) is elevated. What action should the nurse take?

Correct answer: C

Rationale: Administering the scheduled dose of furosemide is appropriate when a client with heart failure has an elevated BNP level. BNP elevation indicates fluid overload, and furosemide is a diuretic that helps in reducing excess fluid. Measuring the client's oxygen saturation (Choice A) is not directly related to addressing fluid overload. Administering nitroglycerin (Choice B) is not indicated for managing elevated BNP levels. Holding the furosemide dose (Choice D) would delay appropriate treatment for fluid overload.

5. The nurse observes a client in a wheelchair with a vest restraint in place. What nursing intervention is most important for the nurse to implement?

Correct answer: A

Rationale: The correct answer is to assess the need for continued restraint. This is the most important nursing intervention as it ensures the client's safety and autonomy. Checking for urinary incontinence (Choice B) may be important but is not the priority in this situation. Determining skin integrity under the vest (Choice C) is essential but not as crucial as assessing the need for continued restraint. Performing range-of-motion exercises (Choice D) is important for client mobility but not the priority when a restraint is in place.

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