HESI LPN
Medical Surgical HESI
1. A young adult client, admitted to the emergency department following a motor vehicle collision, is transfused with 4 units of PRBCs. The client’s pretransfusion hematocrit is 17%. Which hematocrit value should the nurse expect the client to have after all PRBCs have been transfused?
- A. 23%
- B. 25%
- C. 27%
- D. 29%
Correct answer: D
Rationale: One unit of PRBCs typically raises the hematocrit by 3%. Since the client received 4 units, the hematocrit is expected to increase by approximately 12% (4 units x 3% per unit). Therefore, the nurse should expect the client's hematocrit to be 29% after all PRBCs have been transfused. Choices A, B, and C are incorrect as they do not account for the cumulative effect of multiple PRBC units on the hematocrit level.
2. A young client who is being taught how to use an inhaler for symptoms of asthma tells the nurse about the intention to use the inhaler but plans to continue smoking cigarettes. In evaluating the client’s response, what is the best initial action by the nurse?
- A. Explain the risks of smoking with asthma.
- B. Revise the plan of care.
- C. Encourage the client to reduce smoking gradually.
- D. Provide resources for smoking cessation.
Correct answer: B
Rationale: The best initial action by the nurse is to revise the plan of care. This is necessary to address the client's intention to continue smoking and ensure that appropriate support and education are provided. Choice A is not the best initial action as the client is already aware of the risks of smoking with asthma. Choice C might not be effective as the client's intention to continue smoking poses a significant risk to their health. Choice D, providing resources for smoking cessation, is important but revising the plan of care should come first to address the immediate concern.
3. What is the major criterion for diagnosing cognitive impairment in a child?
- A. An IQ of 75 or less
- B. Subaverage functioning
- C. An IQ of 70 or less
- D. Onset before 18
Correct answer: C
Rationale: The correct criterion for diagnosing cognitive impairment in a child is having an IQ of 70 or less. This range is typically used to define cognitive impairment in children. Choice A ('An IQ of 75 or less') is incorrect as the threshold is generally set at 70 or below. Choice B ('Subaverage functioning') is vague and does not specifically address the IQ criterion. Choice D ('Onset before 18') is unrelated to the primary criterion of IQ level used in diagnosing cognitive impairment in children.
4. The settings on a client's synchronized intermittent mandatory ventilation (SIMV) are respiratory rate 12 breaths/minute, tidal volume at 600 mL, FiO2 35%, and positive end-expiratory pressure (PEEP) 5 cm H2O. Which assessment finding necessitates immediate intervention by the nurse?
- A. Bilateral crackles in the lung bases.
- B. Low-pressure indicator alarm.
- C. Oxygen saturation of 91%.
- D. Respiratory rate of 18 breaths/minute.
Correct answer: B
Rationale: A low-pressure alarm may indicate a disconnection or leak in the system, which needs immediate intervention. Bilateral crackles in the lung bases may indicate fluid overload but do not require immediate intervention in this case. An oxygen saturation of 91% is concerning but not as urgent as a potential equipment issue. A respiratory rate of 18 breaths/minute is higher than the set rate but may not necessitate immediate intervention unless accompanied by other distress symptoms.
5. An adult client is admitted with AIDS and oral candidiasis manifested by several painful mouth ulcers. The nurse delegates oral care to the unlicensed assistive personnel (UAP) and discusses how to assist the client. Which instruction should the nurse provide the UAP?
- A. Assist with personal care, but leave oral care for the nurse to complete.
- B. Provide a soft bristle brush for the client to use during oral care.
- C. Use alcohol-based mouthwash to clean the ulcers.
- D. Apply an antifungal cream to the mouth ulcers.
Correct answer: B
Rationale: The correct answer is B: 'Provide a soft bristle brush for the client to use during oral care.' Providing a soft bristle brush helps reduce trauma to the oral mucosa and assists in oral care. Choice A is incorrect because oral care can be safely delegated to UAPs. Choice C is wrong as alcohol-based mouthwash can further irritate the ulcers. Choice D is incorrect as applying an antifungal cream directly to the mouth ulcers is not the standard treatment for oral candidiasis.
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