HESI LPN
HESI Fundamental Practice Exam
1. When using an open irrigation technique to irrigate a client's indwelling urinary catheter, which of the following actions should the nurse take?
- A. Place the client in a side-lying position
- B. Instill 15 mL of irrigation fluid into the catheter with each flush
- C. Subtract the amount of irrigant used from the client's urine output
- D. Perform the irrigation using a 20 mL syringe
Correct answer: C
Rationale: The correct action for the nurse to take when using an open irrigation technique on a client with an indwelling urinary catheter is to subtract the amount of irrigant used from the client's urine output. This calculation helps ensure an accurate measurement of the client's actual urine output by accounting for the irrigation fluid introduced into the catheter. Placing the client in a side-lying position (Choice A) is not directly related to the irrigation procedure. Instilling a specific volume of irrigation fluid (Choice B) may vary depending on the client's condition and the healthcare provider's order. Using a 20 mL syringe for irrigation (Choice D) is a matter of equipment choice and does not directly impact the calculation of urine output in this context.
2. Heparin 20,000 units in 500 ml D5W at 50 ml/hour has been infusing for 5.5 hours. How much heparin has the client received?
- A. 11,000 units.
- B. 13,000 units.
- C. 15,000 units.
- D. 17,000 units.
Correct answer: A
Rationale: To calculate the total amount of heparin received, multiply the infusion rate (50 ml/hour) by the total infusion time (5.5 hours). This results in 275 ml of the solution infused. Since there are 20,000 units of heparin in 500 ml, there are 800 units per ml. Therefore, 275 ml contains 220,000 units. However, the heparin is diluted in 500 ml, so the client has received half of this amount, which is 110,000 units. Therefore, the correct answer is 11,000 units. Choices B, C, and D are incorrect as they do not reflect the correct calculation based on the provided information.
3. A nurse is providing teaching to an older adult client about home safety. Which of the following information should the nurse include?
- A. “Keep a nightlight on in the bathroom”
- B. “Set room temperature to 68 degrees Fahrenheit”
- C. “Place throw rugs over electrical cords”
- D. “Use chairs without armrests”
Correct answer: A
Rationale: The correct answer is A: 'Keep a nightlight on in the bathroom.' This safety measure is crucial for older adults to prevent falls by enhancing visibility during nighttime bathroom visits. Choice B is incorrect because setting the room temperature to 68 degrees Fahrenheit may not be universally suitable for all older adults, as individual preferences vary. Choice C is incorrect as placing throw rugs over electrical cords poses a tripping hazard rather than enhancing safety. Choice D is incorrect as using chairs without armrests may not provide adequate support and stability for older adults, increasing the risk of falls.
4. When caring for an older adult client who becomes agitated when asked to remove dentures before surgery, which of the following responses should the nurse make?
- A. "What worries you about being without your teeth?"
- B. "You need to follow the preoperative instructions and remove your dentures."
- C. "It's important to remove dentures to ensure proper fitting of the mask during anesthesia."
- D. "I will explain why dentures need to be removed before surgery."
Correct answer: A
Rationale: The correct response is to ask the client about their concerns regarding being without their teeth. This approach helps address the client's anxiety and provides insight into the reason for their agitation. Choice B is authoritarian and does not address the client's emotional needs. Choice C focuses on the technical aspect of surgery and does not address the client's emotional state. Choice D implies a one-way communication without addressing the client's feelings or concerns.
5. A healthcare professional is instructing an AP about caring for a client who has a low platelet count. Which of the following instructions is the priority for measuring vital signs for this client?
- A. Avoid measuring the client’s temperature rectally.
- B. Count the client’s radial pulse for 30 seconds and multiply it by 2.
- C. Count the client’s respirations discreetly.
- D. Allow the client to rest for 5 minutes before measuring their BP.
Correct answer: A
Rationale: The correct answer is to avoid measuring the client’s temperature rectally. Rectal temperatures can cause bleeding in clients with low platelet counts. It is crucial to avoid invasive methods that could increase the risk of bleeding or discomfort. Choice B, counting the radial pulse, is not directly related to the risk of bleeding in a client with low platelet count. Choice C, counting respirations discreetly, is important for accuracy but is not the priority when considering the risk of bleeding. Choice D, letting the client rest before measuring blood pressure, is beneficial but is not the priority in preventing potential harm due to low platelet counts.
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