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 type 2 diabetes mellitus is admitted for antibiotic treatment of a leg ulcer. Which signs and symptoms, indicative of hyperosmolar hyperglycemic nonketotic syndrome (HHNS), should the nurse report to the healthcare provider? (Select one that doesn't apply.)

Correct answer: C

Rationale: The correct answer is C, 'Presence of uremic frost.' Increased heart rate, visual disturbances, and decreased mentation are all signs and symptoms indicative of hyperosmolar hyperglycemic nonketotic syndrome (HHNS). Uremic frost, however, is not associated with HHNS but is a clinical finding seen in severe cases of chronic kidney disease. Therefore, the nurse should report the presence of uremic frost to the healthcare provider as a separate concern from HHNS.

3. A female client on the mental health unit tells the nurse that her roommate is sitting on the bathroom floor with superficial cuts on her wrists. The nurse cleans and assesses the client's wrists and asks what happened. She doesn't respond. What should the nurse do next?

Correct answer: B

Rationale: In this situation, the nurse should prioritize the safety of the client. Taking the client to a room for supervision by staff is crucial to ensure immediate safety and further assessment of the client's condition. While cleaning and assessing the client's wrists are important, ensuring ongoing safety and monitoring by staff is the priority. Calling the healthcare provider at this moment may cause delays in providing immediate assistance. Finding supplies to put a dressing on the client's wrists can wait until the client is in a safe environment. Therefore, option B is the best course of action to address the client's safety needs promptly.

4. A nurse is caring for a client who is receiving morphine sulfate via a patient-controlled analgesia (PCA) pump. Which action is most important for the nurse to implement?

Correct answer: A

Rationale: When a client is receiving opioids like morphine sulfate via a PCA pump, the most critical action for the nurse to implement is to monitor the client's respiratory status. Opioids can cause respiratory depression, which can be life-threatening. Monitoring respiratory status allows for early detection of any signs of respiratory compromise. Teaching the client how to use the PCA pump, evaluating pain level, and assessing pain level are important aspects of care but ensuring the client's safety by monitoring respiratory status takes precedence due to the potential risks associated with opioid administration.

5. The nurse is performing a physical assessment of a client with a history of smoking and notes a barrel chest. Which action is most important for the nurse to take next?

Correct answer: A

Rationale: Corrected Rationale: Assessing the client's oxygen saturation level is crucial when a nurse identifies a barrel chest. A barrel chest is often associated with chronic obstructive pulmonary disease (COPD), which can lead to impaired gas exchange and decreased oxygen saturation. Monitoring the oxygen saturation level will provide immediate information on the client's respiratory status. Teaching pursed-lip breathing techniques, determining lung disease history, and obtaining arterial blood gas samples are important interventions but assessing oxygen saturation takes precedence in this scenario due to its direct impact on the client's respiratory function.

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