HESI LPN
HESI CAT Exam Quizlet
1. An 8-year-old child who weighs 60 pounds receives an order for Polycilin (Ampicillin) suspension 25 mg/kg/day divided into a dose every 8 hours. The medication is labeled '125 mg/5 ml'. How many ml should the nurse administer per dose every 8 hours?
- A. 5
- B. 10
- C. 15
- D. 20
Correct answer: A
Rationale: Calculate the daily dose first: 60 pounds x 25 mg/kg = 1500 mg/day. Divide by 3 doses = 500 mg/dose. Convert to mL: (500 mg / 125 mg) x 5 ml = 20 ml. However, the question asks for the dose per administration every 8 hours, which is 1/3 of the daily dose. So, the correct calculation should be (20 ml / 3) = 6.67 ml, which rounds to 5 ml. Therefore, the correct answer is 5 ml. Choice B (10 ml) is incorrect because it doesn't consider the frequency of dosing. Choice C (15 ml) is incorrect as it overestimates the dose. Choice D (20 ml) is incorrect as it represents the total daily dose, not the dose per administration every 8 hours.
2. A client is admitted to a medical unit with the diagnosis of gastritis and chronic heavy alcohol abuse. What should the nurse administer to prevent the development of Wernicke's syndrome?
- A. Lorazepam (Ativan)
- B. Famotidine (Pepcid)
- C. Thiamine (Vitamin B1)
- D. Atenolol (Tenormin)
Correct answer: C
Rationale: Thiamine supplementation is critical in preventing Wernicke's syndrome, especially in clients with chronic alcohol use. Wernicke's syndrome is a neurological disorder caused by thiamine deficiency. Lorazepam is a benzodiazepine used for anxiety and not for preventing Wernicke's syndrome. Famotidine is an H2 blocker used to reduce stomach acid production but does not prevent Wernicke's syndrome. Atenolol is a beta-blocker used for hypertension and angina, not for preventing Wernicke's syndrome.
3. The client who is to avoid any weight-bearing on the left leg is using a 3-point crutch gait for ambulation. What is the best action for the nurse to initiate?
- A. Encourage continued use of the 3-point crutch gait by the client
- B. Encourage the client to use a wheelchair for mobility
- C. Instruct the client in the use of a 4-point crutch gait
- D. Instruct the client in the use of a 2-point crutch gait
Correct answer: C
Rationale: In this scenario, the client needs to avoid weight-bearing on the left leg. A 4-point crutch gait involves using both crutches and both legs, making it more appropriate for weight-bearing restrictions. Encouraging the use of a 3-point gait (choice A) would not provide adequate support for the client's condition. While using a wheelchair (choice B) could be an option, instructing the client in a 4-point crutch gait would promote mobility while adhering to weight-bearing restrictions. A 2-point crutch gait (choice D) involves using both crutches and one leg, which is not suitable for avoiding weight-bearing on the left leg.
4. A client who is diagnosed with amyotrophic lateral sclerosis (ALS) is having difficulty swallowing and articulating words. Which intervention is most important to include in this client’s plan of care?
- A. Encourage speaking slowly and articulating words
- B. Sit upright and flex chin forward while swallowing
- C. Position a communication board at the bedside
- D. Provide feeding utensils with large grip handles
Correct answer: B
Rationale: The correct intervention for a client with ALS experiencing difficulty swallowing and articulating words is to sit upright and flex the chin forward while swallowing. This position helps manage dysphagia associated with ALS by facilitating the swallowing process. Encouraging speaking slowly and articulating words (Choice A) may be helpful for speech clarity but does not address the swallowing issue. Positioning a communication board (Choice C) would not directly address the swallowing difficulty. Providing feeding utensils with large grip handles (Choice D) is not the priority intervention for managing dysphagia in ALS.
5. What assessment data should lead the nurse to suspect that a client has progressed from HIV infection to AIDS?
- A. Enlarged and tender cervical lymph nodes
- B. Presence of low-grade fever and sore throat
- C. Recent history of recurrent pneumonia
- D. CD4 blood cell count of 300
Correct answer: C
Rationale: The correct answer is C: 'Recent history of recurrent pneumonia.' Recurrent pneumonia is a hallmark indicator of progression to AIDS in clients with HIV infection. It signifies advanced immunosuppression when the body is unable to fight off infections effectively. Enlarged and tender cervical lymph nodes (Choice A) are more indicative of local infections or inflammation rather than AIDS progression. The presence of a low-grade fever and sore throat (Choice B) may be common in various infections and are not specific to AIDS progression. While a CD4 blood cell count of 300 (Choice D) is below the normal range and indicates immunosuppression, it alone may not be sufficient to suspect progression to AIDS without other supporting indicators like opportunistic infections such as recurrent pneumonia.
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