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. The nurse is caring for a client who is post-operative following a cholecystectomy. Which assessment finding would require immediate intervention?
- A. Absent bowel sounds
- B. Pain level of 8/10
- C. Temperature of 100.4°F
- D. Saturated abdominal dressing
Correct answer: D
Rationale: A saturated abdominal dressing may indicate active bleeding or other complications that require immediate intervention, such as ensuring hemostasis and preventing further complications. Absent bowel sounds are common in the immediate post-operative period and may not require immediate intervention unless accompanied by other symptoms. A pain level of 8/10 can be managed with appropriate pain medication and is not typically considered an immediate priority unless other indications suggest complications. A temperature of 100.4°F is slightly elevated but may not be a cause for immediate concern unless it is associated with other signs of infection or distress that would warrant urgent attention.
3. A healthcare professional is planning to collect a liquid stool specimen from a client for ova and parasites. Inaccurate test results may result if the healthcare professional:
- A. Refrigerates the collected specimen
- B. Collects the specimen in a sterile container
- C. Delays the collection of the specimen
- D. Uses a non-contaminated collection container
Correct answer: A
Rationale: Refrigeration can kill the ova and parasites present in the stool specimen, leading to inaccurate test results. Storing the specimen in a cold environment can disrupt the integrity of the parasites and ova, affecting the accuracy of the test. Collecting the specimen in a sterile container (Choice B) is the correct procedure to prevent external contamination. Delaying the collection of the specimen (Choice C) may affect the freshness of the sample but does not directly impact the test results. Using a non-contaminated collection container (Choice D) is essential to maintain the sample's integrity but does not relate to the risk of killing ova and parasites through refrigeration.
4. A healthcare professional is providing care to a client who has a tracheostomy. Which of the following actions should the professional take to prevent complications?
- A. Clean around the stoma with povidone-iodine.
- B. Maintain sterile technique when performing tracheostomy care.
- C. Use clean technique when suctioning the tracheostomy.
- D. Change tracheostomy ties weekly.
Correct answer: B
Rationale: Maintaining sterile technique when performing tracheostomy care is essential in preventing infections and complications. Option A is incorrect because povidone-iodine may be too harsh for cleaning around the stoma and can lead to skin irritation. Option C is incorrect because suctioning a tracheostomy should be done using sterile technique to minimize the risk of introducing pathogens. Option D is incorrect as tracheostomy ties need to be changed more frequently, usually every 1-2 days, to prevent skin breakdown and infection.
5. A healthcare professional is caring for a client who has a prescription for morphine 5mg IM but accidentally administers the entire 10mg from the single-dose vial. Which of the following actions should the healthcare professional take first?
- A. Complete an incident report
- B. Measure the client’s respiratory rate
- C. Report the incident to the pharmacy
- D. Notify the client's provider
Correct answer: B
Rationale: Assessing the client's respiratory rate is the priority in this situation as overdosing on morphine can lead to respiratory depression, making it crucial to monitor the client's breathing. Completing an incident report (choice A) is important but should not be the first action. Reporting the incident to the pharmacy (choice C) and notifying the client's provider (choice D) are necessary steps but assessing the client's respiratory status takes precedence to ensure immediate safety and intervention.
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