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 nurse is reviewing evidence-based practice principles about the administration of oxygen therapy with a newly licensed nurse. Which of the following actions should the nurse include?
- A. Regulate oxygen via nasal cannula at a flow rate no more than 6 L/min
- B. Administer oxygen at a higher flow rate for better saturation
- C. Use a high-flow nasal cannula for all clients
- D. Adjust oxygen flow based on client comfort
Correct answer: A
Rationale: The correct answer is A. Regulating oxygen flow at no more than 6 L/min via nasal cannula is a safe practice to prevent potential complications such as oxygen toxicity. Option B suggesting administering oxygen at a higher flow rate for better saturation is incorrect as it can lead to adverse effects. Option C is incorrect because using a high-flow nasal cannula for all clients is not necessary and should be based on individual client needs. Option D is incorrect as adjusting oxygen flow solely based on client comfort without considering the prescribed flow rate can compromise the effectiveness of oxygen therapy.
3. When administering an otic medication to an older adult client, which action should the nurse take to ensure that the medication reaches the inner ear?
- A. Press gently on the tragus of the client's ear
- B. Pack a small piece of cotton deep into the client's ear canal
- C. Move the client's auricle down and back toward their head
- D. Tilt the client's head backward for 5 minutes
Correct answer: A
Rationale: The correct action to ensure that otic medication reaches the inner ear is to press gently on the tragus. The tragus is a small cartilaginous projection in front of the ear canal. Pressing on it helps to straighten the ear canal, allowing the medication to reach the inner ear. Packing cotton or moving the auricle can obstruct the ear canal and prevent proper medication delivery. Tilting the client's head backward is not necessary and may not facilitate the medication reaching the inner ear as effectively as pressing on the tragus.
4. A client requires bed rest and has a prescription for anti-embolic stockings. Which of the following actions should the nurse take?
- A. Apply the stockings with the creases on the front of the leg.
- B. Apply the stockings while the client's legs are in a dependent position.
- C. Remove the stockings at least once per shift.
- D. Remove the stockings while the client is sitting in a reclining chair.
Correct answer: C
Rationale: The correct action for the nurse to take is to remove the anti-embolic stockings at least once per shift. This is essential to assess the client's circulation and skin integrity. Option A is incorrect because the stockings should be applied without creases to ensure proper compression. Option B is incorrect as the stockings should be applied when the client's legs are elevated, not in a dependent position. Option D is incorrect as removing the stockings while the client is sitting in a reclining chair is not necessary and does not provide the appropriate assessment opportunity.
5. A client on a telemetry unit is being cared for by a nurse after a myocardial infarction. The client expresses, 'All this equipment is making me nervous.' Which of the following responses should the nurse make?
- A. 'All of this equipment can be frightening.'
- B. 'The equipment is necessary to monitor your condition.'
- C. 'You should try to ignore the equipment.'
- D. 'Try to relax; the equipment is not harmful.'
Correct answer: A
Rationale: Choice A is the most appropriate response as it acknowledges the client's feelings, showing empathy and understanding. It validates the client's experience, which can help reduce anxiety and build rapport. Choice B provides information but may not address the client's emotional needs. Choice C dismisses the client's concerns and does not offer support. Choice D minimizes the client's feelings and may not effectively address their anxiety.
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