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 charge nurse is explaining the various stages of the lifespan to a group of newly licensed nurses. Which of the following examples should the charge nurse include as a developmental task for a young adult?
- A. Becoming actively involved in providing guidance to the next generation.
- B. Adjusting to major changes in roles and relationships due to losses.
- C. Devoting time to establishing an occupation.
- D. Finding oneself 'sandwiched' between and being responsible for two generations.
Correct answer: C
Rationale: The correct answer is C: Devoting time to establishing an occupation. Young adults typically focus on building their careers and personal identities, making establishing an occupation a crucial developmental task for this age group. Choices A, B, and D do not align with the typical developmental tasks of young adults. Choice A relates more to middle adulthood where individuals take on mentoring roles, choice B is more characteristic of the tasks associated with adjusting to late adulthood, and choice D is more relevant to middle adulthood when individuals may find themselves caring for both their own children and aging parents.
3. During a physical assessment, a nurse is assessing 4 adult clients. Which of the following physical assessment techniques should the nurse use?
- A. Ensure the bladder of the BP cuff surrounds 80% of their arm.
- B. Use the BP cuff on the forearm if the upper arm is not accessible.
- C. Apply the BP cuff loosely around the arm.
- D. Use a pediatric cuff for adults with small arms.
Correct answer: A
Rationale: The correct answer is to ensure the bladder of the BP cuff surrounds 80% of the arm. This technique is crucial for obtaining accurate blood pressure readings. Choice B is incorrect because using the BP cuff on the forearm may lead to inaccurate readings. Choice C is incorrect as applying the BP cuff loosely can also result in inaccurate measurements. Choice D is incorrect because using a pediatric cuff for adults with small arms would not provide accurate blood pressure readings.
4. When should discharge planning for a client experiencing an exacerbation of heart failure be initiated?
- A. During the admission process
- B. After the client is stabilized
- C. When the client expresses readiness to go home
- D. Just before the expected discharge date
Correct answer: A
Rationale: Discharge planning for a client with an exacerbation of heart failure should begin during the admission process. Initiating discharge planning early ensures a smooth transition and continuity of care for the client. Option B, after the client is stabilized, is not ideal because planning should start early to address potential barriers to discharge. Option C, when the client expresses readiness to go home, may be too late as discharge planning is a proactive process. Option D, just before the expected discharge date, does not allow enough time for comprehensive planning and coordination of post-discharge care needs.
5. A client requires gastric decompression, and a nurse is inserting an NG tube. Which action should the nurse take to verify proper placement of the tube?
- A. Assess the client for a gag reflex
- B. Measure the pH of the gastric aspirate
- C. Place the end of the NG tube in water to observe for bubbling
- D. Auscultate 2.5 cm (1 in) above the umbilicus while injecting 15 mL of sterile water
Correct answer: B
Rationale: Measuring the pH of the gastric aspirate is the most reliable method to confirm proper placement of an NG tube. Gastric fluid has an acidic pH, typically ranging from 1 to 5. Assessing the client for a gag reflex (choice A) is important for airway protection but does not confirm tube placement. Placing the NG tube in water to observe for bubbling (choice C) is incorrect and not a reliable method for verifying placement. Auscultating 2.5 cm above the umbilicus while injecting sterile water (choice D) is an outdated method and is not recommended for verifying NG tube placement.
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