HESI LPN
HESI Fundamental Practice Exam
1. A nurse is caring for a client who is unstable and has vital signs measured every 15 minutes by an electronic blood pressure machine. The nurse notices the machine begins to measure the blood pressure at varied intervals and the readings are inconsistent. Which of the following actions should the nurse take?
- A. Discontinue the machine and measure the blood pressure manually every 15 minutes.
- B. Adjust the machine settings.
- C. Clean the machine to ensure accuracy.
- D. Increase the frequency of the readings.
Correct answer: B
Rationale: In this scenario, the nurse should adjust the machine settings. If the electronic blood pressure machine is providing varied intervals and inconsistent readings, it indicates a potential malfunction. Changing the settings may help correct the issue and ensure accurate measurements. Discontinuing the machine and measuring manually every 15 minutes (Choice A) may be time-consuming and impractical. Cleaning the machine (Choice C) is important for routine maintenance but may not address the current issue of varied intervals and inconsistent readings. Increasing the frequency of the readings (Choice D) does not address the problem of inaccurate measurements caused by the malfunctioning machine.
2. The healthcare professional is caring for a client with a peripheral intravenous (IV) line that has infiltrated. What is the most appropriate initial action for the healthcare professional to take?
- A. Apply a warm compress to the affected area.
- B. Discontinue the IV and restart it in another site.
- C. Aspirate the IV line and flush it with normal saline.
- D. Notify the healthcare provider immediately.
Correct answer: B
Rationale: The correct initial action when an IV line infiltrates is to discontinue the IV and restart it in another site. This is crucial to prevent complications such as tissue damage, phlebitis, and infection that can result from the infiltration. Applying a warm compress (Choice A) is not recommended as it can exacerbate the tissue damage caused by the infiltration. Aspirating the IV line and flushing it with normal saline (Choice C) is not appropriate for an infiltrated IV line as it does not address the main issue of infiltration. While notifying the healthcare provider (Choice D) is important, the immediate priority is to discontinue the infiltrated IV to prevent further harm and ensure proper delivery of fluids or medications.
3. A client is in the radiology department at 0900 when the prescription levofloxacin (Levaquin) 500 mg IV q24h is scheduled to be administered. The client returns to the unit at 1300. What is the best intervention for the LPN/LVN to implement?
- A. Contact the healthcare provider and complete a medication variance form.
- B. Administer the Levaquin at 1300 and resume the 0900 schedule the next morning.
- C. Notify the charge nurse and complete an incident report to explain the missed dose.
- D. Give the missed dose at 1300 and change the schedule to administer daily at 1300.
Correct answer: D
Rationale: The correct intervention is to give the missed dose at 1300 and adjust the schedule to administer daily at 1300. This approach ensures that the client receives the correct total daily dose of levofloxacin. Choice A is incorrect because contacting the healthcare provider and completing a medication variance form would not address the immediate need to administer the missed dose. Choice B is incorrect as administering the missed dose at 1300 and resuming the 0900 schedule the next morning would result in a missed dose for that day. Choice C is not the best course of action as notifying the charge nurse and completing an incident report should come after addressing the immediate need to administer the missed dose and adjusting the schedule for future doses.
4. A nurse is preparing an infusion for a client who was hospitalized with deep-vein thrombosis. The orders read: 25,000 units of heparin in 250 mL of 0.9% sodium chloride to infuse at 800 units/hr. At what rate should the nurse set the infusion pump?
- A. 8 mL/hr
- B. 10 mL/hr
- C. 12 mL/hr
- D. 15 mL/hr
Correct answer: A
Rationale: To calculate the infusion rate, use the formula: (Desired units/hr / Total units) × Volume. In this case, it would be (800 units/hr / 25,000 units) × 250 mL = 8 mL/hr. Therefore, the nurse should set the infusion pump at 8 mL/hr. Choice B, 10 mL/hr, is incorrect because it does not match the calculated rate. Choices C and D, 12 mL/hr and 15 mL/hr respectively, are also incorrect as they do not align with the correct calculation based on the provided data.
5. A client with chronic kidney disease is receiving epoetin alfa (Epogen). Which laboratory value should the nurse monitor to determine the effectiveness of this medication?
- A. Serum creatinine
- B. Hemoglobin
- C. Blood urea nitrogen (BUN)
- D. Platelet count
Correct answer: B
Rationale: The correct answer is B: Hemoglobin. Epoetin alfa (Epogen) is a medication commonly used in clients with chronic kidney disease to stimulate red blood cell production. Monitoring hemoglobin levels is crucial to assess the effectiveness of epoetin alfa therapy. Hemoglobin levels reflect the oxygen-carrying capacity of the blood and indicate if the medication is successfully treating anemia associated with chronic kidney disease. Option A, serum creatinine, is a marker of kidney function, not the primary indicator of epoetin alfa effectiveness. Option C, blood urea nitrogen (BUN), is a measure of kidney function and hydration status. Option D, platelet count, assesses clotting ability and is unrelated to monitoring the effectiveness of epoetin alfa in treating anemia in chronic kidney disease.
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