HESI LPN
HESI Fundamental Practice Exam
1. A client is to receive 10 mEq of KCl diluted in 250 ml of normal saline over 4 hours. At what rate should the LPN/LVN set the client's intravenous infusion pump?
- A. 13 ml/hour
- B. 63 ml/hour
- C. 80 ml/hour
- D. 125 ml/hour
Correct answer: B
Rationale: To calculate the correct rate of infusion, divide the total volume by the total time: 250 ml / 4 hours = 62.5 ml/hour, which is rounded up to 63 ml/hour. This rate ensures the proper administration of the KCl over the 4-hour period. Choice A (13 ml/hour) is incorrect as it does not match the calculated rate. Choices C (80 ml/hour) and D (125 ml/hour) are also incorrect as they do not correspond to the calculated rate needed for the specified time frame.
2. A healthcare professional is preparing to administer an intramuscular injection to a young adult client. Which of the following injection sites is the safest for this client?
- A. Ventrogluteal
- B. Dorsogluteal
- C. Deltoid
- D. Vastus lateralis
Correct answer: A
Rationale: The ventrogluteal site is considered the safest for intramuscular injections in young adult clients due to its location away from major nerves and blood vessels. The ventrogluteal site is preferred over the dorsogluteal site, as the latter is associated with a higher risk of injury to the sciatic nerve. The deltoid site is commonly used for vaccines but may not be suitable for all intramuscular injections due to smaller muscle mass. The vastus lateralis site is often used in infants and young children, but in young adults, the ventrogluteal site is preferred for safety and efficacy.
3. An unlicensed assistive personnel (UAP) places a client in a left lateral position before administering a soap suds enema. Which instruction should the LPN/LVN provide the UAP?
- A. Position the client on the right side of the bed in reverse Trendelenburg.
- B. Fill the enema container with 1000 ml of warm water and 5 ml of castile soap.
- C. Reposition the client in a Sim's position with the weight on the anterior ilium.
- D. Raise the side rails on both sides of the bed and elevate the bed to waist level.
Correct answer: C
Rationale: The correct instruction the LPN/LVN should provide to the UAP is to reposition the client in a Sim's position with the weight on the anterior ilium for administering a soap suds enema. This position helps facilitate the administration of the enema by providing better access and comfort for the client. Choice A is incorrect as reverse Trendelenburg is not the appropriate position for administering a soap suds enema. Choice B is incorrect as the concentration of soap in the enema solution is not specified and might be too strong. Choice D is incorrect as raising the side rails and elevating the bed does not directly relate to the proper positioning for administering the enema.
4. A nurse educator is conducting a parenting class for new guardians of infants. Which of the following statements made by a participant indicated understanding?
- A. “I will set my water heater at 130°F.”
- B. “Once my baby can sit up, they should be safe in the bathtub.”
- C. “I will place my baby on their stomach to sleep.”
- D. “Once my infant starts to push up, I will remove the mobile from over the crib.”
Correct answer: D
Rationale: The correct answer is D. Removing the mobile when the baby starts to push up prevents choking hazards as infants can reach and grab objects posing a risk of choking. Choice A is unsafe as setting the water heater at 130°F can scald a child. Choice B is incorrect because even when a baby can sit up, they still require close supervision in the bathtub. Choice C is unsafe as current guidelines recommend placing babies on their backs to sleep to reduce the risk of sudden infant death syndrome (SIDS). Therefore, choices A, B, and C are incorrect or unsafe practices for infant care.
5. What action should the LPN/LVN take to prevent postoperative complications in a client who has undergone abdominal surgery?
- A. Encourage the client to use an incentive spirometer regularly.
- B. Assist the client in ambulating as soon as possible.
- C. Position the client in high Fowler's position.
- D. Encourage the client to cough and deep breathe regularly.
Correct answer: A
Rationale: Encouraging the client to use an incentive spirometer regularly is crucial in preventing postoperative complications after abdominal surgery. This action helps prevent atelectasis by promoting lung expansion and improving air exchange in the lungs, reducing the risk of respiratory complications. Assisting the client in ambulating early is important for preventing issues like deep vein thrombosis but may not directly address respiratory concerns postoperatively. Positioning the client in high Fowler's position can help with respiratory distress but is not as specific to preventing postoperative respiratory complications as using an incentive spirometer. While encouraging the client to cough and deep breathe is generally beneficial for lung expansion, using an incentive spirometer is more effective and targeted in preventing atelectasis after abdominal surgery.
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