HESI LPN
Medical Surgical HESI 2023
1. A client is receiving a secondary infusion of erythromycin 1 gram in 100 mL dextrose 5% in water (D5W) to be infused in 45 minutes. How many mL/hour should the nurse program the infusion pump?
- A. 100 mL/hour.
- B. 125 mL/hour.
- C. 133 mL/hour.
- D. 150 mL/hour.
Correct answer: C
Rationale: To infuse 100 mL in 45 minutes, the infusion rate should be set to 133 mL/hour (100 mL / 0.75 hours). This calculation is obtained by dividing the total volume to be infused by the total time for infusion (100 mL / 0.75 hours = 133 mL/hour). Therefore, choice C is the correct answer. Choices A, B, and D are incorrect because they do not accurately calculate the infusion rate required to deliver the medication within the specified time frame.
2. A teenage girl has been placed in a brace for the treatment of scoliosis, the most common skeletal deformity of adolescence. The family asks what they can do to be more supportive. What suggestion from the nurse is the most appropriate?
- A. Enrolling her in a health club
- B. Taking her to the mall in a wheelchair
- C. Purchasing clothes to disguise the brace
- D. Spending a majority of their time with her
Correct answer: C
Rationale: The most appropriate suggestion from the nurse is to recommend purchasing clothes to disguise the brace. Adolescents with scoliosis often have body image concerns and wish to fit in with their peers. By providing clothes that help conceal the brace, the family can support the teenage girl's emotional well-being. Choices A, B, and D do not directly address the adolescent's concerns about body image and fitting in, making them less appropriate in this situation.
3. A client with type 1 diabetes mellitus is experiencing nausea and vomiting. What is the most important instruction the nurse should provide?
- A. Stop taking insulin until feeling better
- B. Increase fluid intake to prevent dehydration
- C. Consume high-carbohydrate foods only
- D. Check blood glucose levels frequently
Correct answer: D
Rationale: The correct answer is to instruct the client to check blood glucose levels frequently. During illness, such as nausea and vomiting, managing blood glucose levels is crucial in clients with type 1 diabetes mellitus. Monitoring blood glucose levels frequently helps in adjusting insulin doses appropriately, preventing complications like hyperglycemia or hypoglycemia. Choice A is incorrect because stopping insulin abruptly can lead to serious complications. Choice B is important but not the most critical in this scenario. Choice C is incorrect as high-carbohydrate foods may further affect blood glucose levels negatively.
4. A woman with chronic osteoarthritis is complaining of knee pain. Which pathophysiological process is contributing to her pain?
- A. Inflammation of the synovial membrane.
- B. Degeneration of the cartilage in the joint.
- C. Joint inflammation occurs when chondrocyte injury destroys joint cartilage, producing osteophytes.
- D. Formation of uric acid crystals in the joint space.
Correct answer: C
Rationale: The correct answer is C. In osteoarthritis, the breakdown of cartilage in the joints leads to chondrocyte injury, which results in the destruction of joint cartilage and the production of osteophytes. This process causes joint inflammation and pain. Choice A is incorrect because osteoarthritis primarily involves the articular cartilage rather than the synovial membrane. Choice B is incorrect as it describes the degeneration of cartilage but does not explain the specific pathophysiological process contributing to pain in osteoarthritis. Choice D is incorrect as the formation of uric acid crystals is characteristic of gout, not osteoarthritis.
5. A client with asthma is prescribed a metered-dose inhaler (MDI) with albuterol. Which instruction is essential for the nurse to provide?
- A. Use the inhaler only before bedtime
- B. Shake the inhaler well before use
- C. Exhale fully before inhaling the medication
- D. Take two puffs every hour
Correct answer: B
Rationale: The correct answer is to 'Shake the inhaler well before use.' This instruction is crucial as shaking the inhaler ensures the proper mixing of the medication, which is essential for its effective delivery. Option A is incorrect because using the inhaler only before bedtime may not provide adequate relief during the day. Option C is incorrect as exhaling fully is a good practice but not the most essential instruction. Option D is incorrect as taking two puffs every hour may exceed the recommended dosage and lead to adverse effects.
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