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. A 3-year-old child has had multiple tooth extractions while under general anesthesia. The client returns from the post-anesthesia care unit crying but awake. Which approach is likely to be successful?
- A. Examine the mouth first
- B. Reassure the child
- C. Examine the mouth last
- D. Offer a pacifier
Correct answer: C
Rationale: In this scenario, it is crucial to prioritize the comfort of the child. By examining the mouth last, discomfort is minimized, and the child is given the opportunity to settle down. Choosing to examine the mouth first may escalate the distress of the child further. While reassuring the child is important, in this case, addressing the physical discomfort before providing emotional reassurance is more effective. Offering a pacifier may provide some comfort, but addressing the immediate physical discomfort by examining the mouth last is the most appropriate action to help the child settle down after the procedure.
3. The healthcare provider is educating a client about dietary changes to prevent the recurrence of calcium oxalate kidney stones. Which food should the provider advise the client to avoid?
- A. Spinach
- B. Bananas
- C. Chicken
- D. Rice
Correct answer: A
Rationale: The correct answer is A: Spinach. Spinach is high in oxalate, a compound that can contribute to the formation of calcium oxalate kidney stones. Therefore, advising the client to avoid spinach is crucial in reducing the risk of stone recurrence. Bananas (choice B) are not high in oxalate and do not directly contribute to the formation of calcium oxalate stones, so they do not need to be avoided. Similarly, choices C and D, chicken, and rice, are not typically associated with high oxalate content, making them safe choices and do not need to be avoided specifically to prevent calcium oxalate kidney stones.
4. The LPN/LVN observes that a male client has removed the covering from an ice pack applied to his knee. What action should the nurse take first?
- A. Observe the appearance of the skin under the ice pack.
- B. Instruct the client regarding the importance of the covering.
- C. Reapply the covering after filling it with fresh ice.
- D. Ask the client how long the ice pack was applied to the skin.
Correct answer: A
Rationale: The correct first action for the nurse to take when a client removes the covering from an ice pack is to observe the appearance of the skin under the ice pack. This assessment is crucial to check for any skin damage or adverse reactions resulting from direct contact with the ice pack. Instructing the client about the importance of the covering (Choice B) can follow the skin assessment. Reapplying the covering (Choice C) before skin assessment may potentially cause harm. Asking the client about the duration of ice application (Choice D) is not the immediate priority; ensuring skin integrity is the primary concern.
5. The LPN/LVN mixes 50 mg of Nipride in 250 ml of D5W and plans to administer the solution at a rate of 5 mcg/kg/min to a client weighing 182 pounds. Using a drip factor of 60 gtt/ml, how many drops per minute should the client receive?
- A. 31 gtt/min.
- B. 62 gtt/min.
- C. 93 gtt/min.
- D. 124 gtt/min.
Correct answer: D
Rationale: To calculate the drops per minute for the client, first, convert the weight from pounds to kilograms by dividing 182 by 2.2, which equals 82.72 kg. Then, calculate the dose in mcg/min by multiplying the weight in kg by the rate (82.72 kg * 5 mcg/kg/min = 413.6 mcg/min). Next, convert 50 mg to mcg (50 mg * 1000 = 50,000 mcg). Divide the total mcg (50,000 mcg) by the dose per minute (413.6 mcg/min) to get approximately 121 gtt/min. However, since the drip factor is 60 gtt/ml, the correct answer is 124 gtt/min, ensuring the accurate administration rate of the medication. Therefore, choice 'D' is the correct answer. Choices 'A', 'B', and 'C' are incorrect as they do not accurately reflect the calculated drops per minute based on the given information.
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