HESI LPN
HESI Fundamentals Exam
1. A client with a new diagnosis of diabetes mellitus is being taught how to administer insulin. Which of the following instructions should the nurse include?
- A. Administer the insulin in the same body area each time.
- B. Store the insulin according to the manufacturer's instructions.
- C. Rotate injection sites within the same body area.
- D. Inject the insulin at a 45-degree angle.
Correct answer: C
Rationale: The correct instruction the nurse should include is to rotate injection sites within the same body area. This practice helps prevent lipodystrophy, a condition characterized by the thickening or thinning of subcutaneous fat at the injection sites, which can affect insulin absorption. Choice A is incorrect because administering insulin in the same area each time can lead to lipodystrophy. Choice B is incorrect as insulin should be stored according to the manufacturer's instructions, which may include refrigeration. Choice D is incorrect because the angle of insulin injection (usually 90 degrees) is determined by the length of the needle and the amount of subcutaneous fat, not a fixed 45-degree angle.
2. Postoperatively, signs of hemorrhagic shock are observed. The nurse notifies the surgeon, who instructs to continue monitoring vitals every 15 minutes and report back in one hour. What should the nurse do next?
- A. Notify the nurse manager
- B. Continue monitoring as instructed
- C. Administer IV fluids as per protocol
- D. Prepare for immediate transfer to the ICU
Correct answer: B
Rationale: The correct answer is to continue monitoring the patient as instructed. This is crucial to assess the patient's condition and response to initial interventions. Administering IV fluids or preparing for transfer to the ICU should only be done based on further assessment or explicit orders from the healthcare provider. Notifying the nurse manager, as suggested in choice A, without further assessment or intervention could delay immediate patient care and management.
3. A client is to receive cimetidine (Tagamet) 300 mg q6h IVP. The preparation arrives from the pharmacy diluted in 50 ml of 0.9% NaCl. The LPN plans to administer the IVPB dose over 20 minutes. For how many ml/hr should the infusion pump be set to deliver the secondary infusion?
- A. 150
- B. 50
- C. 100
- D. 75
Correct answer: A
Rationale: Setting the infusion pump to 150 ml/hr ensures the correct administration rate of the IVPB dose over 20 minutes. To calculate the infusion rate, consider that the total volume to be infused is 50 ml over 20 minutes. To convert this to ml/hr, the calculation is (50 ml / 20 minutes) x 60 minutes/hr = 150 ml/hr. Choices B, C, and D are incorrect as they do not reflect the correct calculation for the infusion rate needed to deliver the secondary infusion over the specified time.
4. While a client is receiving total parenteral nutrition (TPN), which of the following actions should the nurse take?
- A. Monitor the client's blood glucose level every 4 hours.
- B. Change the TPN tubing every 72 hours.
- C. Weigh the client daily.
- D. Change the TPN bag every 24 hours.
Correct answer: D
Rationale: The correct action is to change the TPN bag every 24 hours to reduce the risk of infection. Changing the TPN tubing every 72 hours (Choice B) may increase the risk of contamination. Monitoring the client's blood glucose level every 4 hours (Choice A) is important but not specific to TPN administration. Weighing the client daily (Choice C) is essential for monitoring fluid status but is not directly related to TPN administration.
5. A client who has recently started using a behind-the-ear hearing aid is being cared for by a nurse. Which of the following statements should the nurse identify as an indication that the client understands the use of assistive devices?
- A. “I will be sure to remove my hearing aid before taking a shower.”
- B. “I will keep my hearing aid in at all times, even when sleeping.”
- C. “I will clean my hearing aid with alcohol.”
- D. “I will turn off my hearing aid when not in use.”
Correct answer: A
Rationale: The correct answer is A. It is crucial for the client to remove the hearing aid before showering to prevent damage from moisture. Choice B is incorrect as wearing the hearing aid all the time, including during sleep, is not recommended and can cause discomfort or harm. Choice C is incorrect as alcohol can damage hearing aids; they should be cleaned with a solution recommended by the manufacturer to prevent harm. Choice D is incorrect because hearing aids should not be turned off when not in use; instead, they should be stored properly following the manufacturer's instructions to maintain functionality and battery life.
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