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. What intervention is most important for the LPN/LVN to implement for a male client experiencing urinary retention?
- A. Apply a condom catheter.
- B. Apply a skin protectant.
- C. Encourage increased fluid intake.
- D. Assess for bladder distention.
Correct answer: D
Rationale: The most important intervention for the LPN/LVN to implement for a male client experiencing urinary retention is to assess for bladder distention. This assessment is crucial as it helps identify the underlying cause of urinary retention, such as bladder distention or obstruction. By assessing the bladder, the LPN/LVN can determine the appropriate interventions needed, such as catheterization, medication administration, or further evaluation by the healthcare provider. Applying a condom catheter (Choice A) is more suitable for urinary incontinence, not retention. Applying a skin protectant (Choice B) is typically done to prevent skin breakdown in incontinent clients. Encouraging increased fluid intake (Choice C) may be beneficial for some urinary issues but is not the priority intervention for urinary retention.
3. A nurse is admitting a client who has an abdominal wound with a large amount of purulent drainage. Which of the following types of transmission precautions should the nurse initiate?
- A. Protective environment
- B. Airborne precautions
- C. Droplet precautions
- D. Contact precautions
Correct answer: D
Rationale: The correct answer is D: Contact precautions. When a client has an abdominal wound with purulent drainage, contact precautions are necessary to prevent the spread of infection through direct contact. Protective environment precautions are used for immunocompromised clients, airborne precautions are for diseases transmitted by airborne particles, and droplet precautions are for diseases transmitted by respiratory droplets. In this case, the focus is on preventing direct contact transmission, making contact precautions the most appropriate choice. Protective environment, airborne, and droplet precautions are not indicated in this scenario because the primary concern is the direct contact transmission of pathogens through the wound drainage.
4. The nurse is caring for a client with a central venous catheter. What is the most important action for the nurse to take to prevent infection?
- A. Change the catheter dressing every 72 hours.
- B. Flush the catheter with heparin solution daily.
- C. Ensure the catheter is clamped when not in use.
- D. Maintain sterile technique when handling the catheter.
Correct answer: D
Rationale: Maintaining sterile technique when handling a central venous catheter is crucial in preventing infections. Changing the catheter dressing every 72 hours, while important for overall catheter care, does not directly address infection prevention. Flushing the catheter with heparin solution daily is essential for maintaining patency but does not primarily prevent infections. Ensuring the catheter is clamped when not in use is important for preventing air embolism but is not the most critical action to prevent infection. The most effective way to prevent infections is by strictly adhering to sterile techniques during catheter handling, which minimizes the risk of introducing pathogens into the catheter site.
5. A charge nurse is observing a newly licensed nurse prepare a sterile field. Which of the following actions should the charge nurse identify as contaminating the sterile field?
- A. The nurse opens the sterile field on a wet surface.
- B. The nurse turns away from the sterile field.
- C. The nurse uses a non-sterile glove to touch the sterile field.
- D. The nurse touches the edge of the sterile drape with her hand.
Correct answer: A
Rationale: The correct answer is A. Opening the sterile field on a wet surface contaminates it, rendering it unsafe for use. Moisture can carry microorganisms that can compromise the sterility of the field. Choice B is incorrect because turning away from the sterile field alone does not necessarily contaminate it unless the nurse touches non-sterile items. Choice C is incorrect because using a non-sterile glove to touch the sterile field directly introduces contaminants. Choice D is incorrect as touching the edge of the sterile drape with a hand may not necessarily contaminate the entire field, unlike opening it on a wet surface.
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