HESI LPN
HESI Fundamentals Exam Test Bank
1. 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.
2. A client has a closed wound drainage system. Which of the following actions should the nurse take?
- A. Avoid pressing the container down to create a vacuum
- B. Wear sterile gloves while handling the drainage system
- C. Reset the container with the drainage port closed
- D. Maintain the drain in a dependent position to facilitate drainage
Correct answer: D
Rationale: In a closed wound drainage system, it is essential to maintain the drain in a dependent position to allow for proper drainage. Gravity aids in the flow of drainage, preventing fluid backflow or pooling. Avoiding pressing the container down to create a vacuum (Choice A) is crucial as it can lead to complications in the system. Wearing sterile gloves (Choice B) is important for infection control when handling the drainage system. Resetting the container with the drainage port closed (Choice C) is incorrect as it can cause spillage and contamination of the surrounding area.
3. A patient requires repositioning every 2 hours. Which task can the nurse delegate to the nursing assistive personnel?
- A. Determining the level of comfort
- B. Changing the patient's position
- C. Identifying immobility hazards
- D. Assessing circulation
Correct answer: B
Rationale: The correct answer is B: 'Changing the patient's position.' Repositioning the patient involves physically moving and adjusting their position in bed, which is a task that can be safely delegated to nursing assistive personnel (NAP). This task does not require clinical judgment or assessment skills beyond the ability to follow guidelines for proper positioning. Choices A, C, and D involve assessments or judgments that require a higher level of training and knowledge, making them more appropriate for a nurse to perform. Choice A involves assessing comfort, which may involve subjective factors and individual preferences. Choice C involves identifying hazards related to immobility, which requires understanding the potential risks and complications associated with immobility. Choice D involves assessing circulation, which requires a higher level of clinical knowledge and understanding of circulatory issues.
4. A client with lower extremity weakness is being taught a four-point crutch gait by a nurse. Which of the following instructions should the nurse include in the teaching?
- A. Bear weight on both legs.
- B. Move the crutches and the weak leg in unison.
- C. Advance the crutches and the strong leg simultaneously.
- D. Move the crutches forward, then move one leg at a time.
Correct answer: D
Rationale: The correct technique for a four-point crutch gait involves moving the crutches forward, then moving one leg at a time. This method provides stability and support by alternating movement between the crutches and legs. Choice A is incorrect because bearing weight on both legs simultaneously is not the correct method for a four-point gait. Choice B is incorrect as moving the crutches and weak leg together does not provide the required stability. Choice C is incorrect as advancing the crutches and strong leg together does not promote the alternating movement needed for a four-point gait.
5. How should the nurse transcribe the dosage of this medication on the client's medical record?
- A. 0.3 mg
- B. 0.3 mg
- C. 0.30 mg
- D. 3/10 mg
Correct answer: B
Rationale: The correct way to transcribe the dosage of three tenths of a milligram of levothyroxine IV STAT is 0.3 mg. When expressing decimals less than 1, there should be a leading zero before the decimal point. Choice A is incorrect (.3 mg) because it lacks the leading zero. Choice C (0.30 mg) is incorrect as it includes a trailing zero after the decimal point, which is unnecessary. Choice D (3/10 mg) is incorrect as it presents the dosage as a fraction, which is not the standard format for transcribing medication dosages. Therefore, B (0.3 mg) is the most appropriate and accurate way to document this prescription on the client's medical record.
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