HESI RN
HESI RN CAT Exam Quizlet
1. A client with chronic obstructive pulmonary disease (COPD) is receiving oxygen at 4 liters per minute via nasal cannula. The client becomes lethargic and confused. What action should the nurse take first?
- A. Decrease the oxygen flow rate
- B. Increase the oxygen flow rate
- C. Encourage the client to cough and deep breathe
- D. Monitor the client's oxygen saturation level
Correct answer: A
Rationale: In this scenario, the priority action for the nurse is to decrease the oxygen flow rate. Clients with COPD are sensitive to high levels of oxygen and can develop oxygen toxicity, leading to symptoms like lethargy and confusion. Decreasing the oxygen flow rate helps prevent this complication. Increasing the oxygen flow rate would worsen the client's condition. Encouraging coughing and deep breathing may not address the immediate issue of oxygen toxicity. While monitoring the client's oxygen saturation level is important, taking action to address the oxygen toxicity by decreasing the flow rate is the priority in this situation.
2. A client who has a new prescription for warfarin (Coumadin) asks the nurse how the medication works. What explanation should the nurse provide?
- A. It dissolves blood clots
- B. It prevents the blood from clotting
- C. It thins the blood
- D. It decreases the risk of infection
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.
3. Which nursing diagnosis has the highest priority when planning care for a client in cardiogenic shock?
- A. Risk for imbalanced body temperature
- B. Excess fluid volume
- C. Fatigue
- D. Ineffective Tissue Perfusion
Correct answer: D
Rationale: In cardiogenic shock, the priority nursing diagnosis is Ineffective Tissue Perfusion. This diagnosis indicates that the client is not receiving adequate oxygenated blood to tissues, putting vital organs at risk. Addressing ineffective tissue perfusion is crucial to prevent organ damage and ensure the client's survival. The other options, such as 'Risk for imbalanced body temperature,' 'Excess fluid volume,' and 'Fatigue,' are important but secondary to the immediate threat of inadequate tissue perfusion in cardiogenic shock.
4. 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?
- A. Destroy any hidden supplies of alcohol she has at home so she has to stay sober
- B. When she drinks, communicate how disruptive her behaviors are and the burden they inflict on the family
- C. Make her responsible for the consequences of her drinking behaviors
- D. Include her in family activities whether she is drinking or sober
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.
5. A client with a history of heart failure is admitted to the hospital with worsening dyspnea. The nurse notes that the client has a productive cough with pink, frothy sputum. What action should the nurse take first?
- A. Administer oxygen
- B. Perform chest physiotherapy
- C. Elevate the head of the bed
- D. Obtain a sputum specimen
Correct answer: A
Rationale: In a client with heart failure presenting with worsening dyspnea and pink, frothy sputum (indicating pulmonary edema), the priority action for the nurse is to administer oxygen. Oxygen therapy helps improve oxygenation and alleviate dyspnea by increasing the oxygen supply to the lungs. Performing chest physiotherapy, elevating the head of the bed, or obtaining a sputum specimen are not the initial actions indicated in this situation and may delay addressing the client's immediate need for improved oxygenation.
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