HESI LPN
HESI Fundamentals 2023 Test Bank
1. A child weighing 20 kg has a new prescription for cefoxitin at 80 mg/kg/day administered intravenously every 6 hours. How much cefoxitin should be administered with each dose?
- A. 400 mg
- B. 200 mg
- C. 1600 mg
- D. 100 mg
Correct answer: A
Rationale: To determine the amount of cefoxitin to be administered with each dose, first, calculate the total daily dose by multiplying the child's weight (20 kg) by the prescribed dose (80 mg/kg/day): 80 mg/kg/day × 20 kg = 1600 mg/day. Since the medication is administered every 6 hours (4 doses/day), divide the total daily dose by the number of doses: 1600 mg / 4 = 400 mg. Therefore, each dose should be 400 mg. Choice B (200 mg) is incorrect because it is half the calculated dose. Choice C (1600 mg) is incorrect as it represents the total daily dose, not the dose per administration. Choice D (100 mg) is incorrect as it is a quarter of the calculated dose.
2. The nurse is caring for a client with a nasogastric (NG) tube. Which action should the nurse take to maintain patency of the tube?
- A. Flush the tube with 30 ml of water before and after medication administration.
- B. Administer the medication with food to prevent nausea.
- C. Verify tube placement by aspirating stomach contents.
- D. Dilute the medication with normal saline before administration.
Correct answer: A
Rationale: To maintain the patency of a nasogastric (NG) tube, it is essential to flush the tube with 30 ml of water before and after medication administration. This action helps ensure that the tube remains open and free from blockages. Flushing the tube prevents any medication residue from causing blockages, maintaining its patency. Choice B is incorrect because administering medication with food does not relate to maintaining tube patency. Choice C is incorrect as verifying tube placement by aspirating stomach contents is related to confirming correct tube placement, not maintaining patency. Choice D is also incorrect because diluting the medication with normal saline is not primarily aimed at maintaining the tube's patency.
3. 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.
4. A healthcare professional is preparing to perform denture care for a client. Which of the following actions should the professional plan to take?
- A. Pull down and out at the back of the upper denture to remove.
- B. Brush the dentures with a toothbrush and denture cleaner.
- C. Rinse the dentures with hot water after cleaning them.
- D. Place the dentures in a clean, dry storage container after cleaning them.
Correct answer: B
Rationale: The correct answer is to brush the dentures with a toothbrush and denture cleaner. This action ensures effective cleaning of the dentures. Dentures should be rinsed with cool or lukewarm water, not hot water, to prevent damage. Placing the dentures in a clean, dry storage container is not the immediate next step after cleaning; they should be kept moist to prevent warping.
5. When ambulating a frail, older adult client, the nurse should:
- A. Use the transfer belt if the client is unsteady
- B. Walk beside the client without support
- C. Encourage the client to use a walker
- D. Hold the client's arm for support
Correct answer: A
Rationale: Using a transfer belt if the client is unsteady is essential to provide added safety and support during ambulation. This device helps the nurse assist the client in maintaining balance and prevents falls. Walking beside the client without support (choice B) may not offer enough assistance for a frail, older adult who is unsteady. Encouraging the client to use a walker (choice C) could be helpful in some cases, but if the client is unsteady during ambulation, additional support like a transfer belt is more appropriate. Holding the client's arm for support (choice D) may not provide enough stability and safety compared to using a transfer belt.
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