HESI LPN
HESI Fundamentals Exam
1. A nurse is preparing to administer methylprednisolone 10 mg by IV bolus. The amount available is methylprednisolone injection 40-mg/mL. How many mL should the nurse administer? (Round the answer to the nearest tenth. Do not use a trailing zero.)
- A. 0.3 mL
- B. 0.25 mL
- C. 0.4 mL
- D. 0.5 mL
Correct answer: A
Rationale: To calculate the mL to administer, use the formula: Dose required (mg) ÷ Stock concentration (mg/mL) = Volume to administer (mL). In this case, 10 mg ÷ 40 mg/mL = 0.25 mL. However, when rounding to the nearest tenth, the answer should be 0.3 mL. Therefore, the nurse should administer 0.3 mL. Choice A is the correct answer. Choice B (0.25 mL) is the result obtained before rounding. Choice C (0.4 mL) and Choice D (0.5 mL) are incorrect calculations.
2. The nurse is caring for an older adult patient who has been diagnosed with a stroke. Which intervention will the nurse add to the care plan?
- A. Encourage the patient to perform as many self-care activities as possible.
- B. Provide assistance with a bed bath to promote patient comfort.
- C. Coordinate with physical therapy for gait training.
- D. Instruct the patient to remain on bed rest to prevent fatigue.
Correct answer: A
Rationale: The correct answer is A: Encourage the patient to perform as many self-care activities as possible. For a patient who has had a stroke, promoting independence and engaging in self-care activities help maintain mobility and foster a sense of autonomy. Choices B, C, and D are incorrect because providing assistance with a bed bath, coordinating with physical therapy for gait training, or advising bed rest without indications may not be the best interventions for promoting optimal recovery and independence in a stroke patient.
3. A healthcare professional is preparing to administer dextrose 5% in water (D5W) 1,000-mL IV to infuse over 10 hr. How many mL/hr should the IV infusion pump be set to deliver? (Round the answer to the nearest whole number. Do not use a trailing zero.)
- A. 100 mL/hr
- B. 150 mL/hr
- C. 75 mL/hr
- D. 50 mL/hr
Correct answer: A
Rationale: To infuse 1,000 mL over 10 hr, the IV pump should be set to deliver 100 mL/hr. This calculation is derived by dividing the total volume (1,000 mL) by the total time in hours (10 hr), resulting in the infusion rate of 100 mL/hr. Choices B, C, and D are incorrect as they do not accurately reflect the correct calculation for this scenario.
4. A nurse at an assisted living facility is preparing an in-service for residents about electrical safety. Which of the following instructions should the nurse include?
- A. Avoid taping electrical cords to the floor.
- B. Clean electrical equipment before disconnection.
- C. Cover exposed wires with tape before use.
- D. Disconnect electrical equipment by grasping the plug.
Correct answer: A
Rationale: The correct instruction for electrical safety is to avoid taping electrical cords to the floor. Taping cords can create tripping hazards, leading to falls and potential injuries. Choice B, cleaning electrical equipment before disconnection, is not directly related to electrical safety but rather to equipment maintenance. Choice C, covering exposed wires with tape before use, is incorrect as exposed wires should be properly insulated and repaired by a qualified professional. Choice D, disconnecting electrical equipment by grasping the plug, is unsafe and can lead to electrical shocks. It is always recommended to unplug devices by holding the plug itself, not by pulling the cord.
5. While starting an intravenous infusion (IV) for a client, the nurse notices that her gloved hands get spotted with blood. The client has not been diagnosed with any infection transmitted via the bloodstream. Which of the following should the nurse do as soon as the task is completed?
- A. Remove the gloves carefully and follow with hand hygiene
- B. Change gloves and continue
- C. Wash hands immediately without removing gloves
- D. Report the incident to the supervisor
Correct answer: A
Rationale: After completing the task, the nurse should remove the gloves carefully and follow with hand hygiene. This practice is crucial to prevent the transmission of any potential pathogens, maintain cleanliness, and reduce the risk of infection. Changing gloves and continuing without proper hand hygiene may lead to contamination. Washing hands immediately without removing gloves is not recommended as it does not ensure thorough hand hygiene. Reporting the incident to the supervisor should be done if there are specific protocols in place for such incidents, but immediate hand hygiene is the priority in this scenario to ensure patient and nurse safety.
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