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 hospitalized male client is receiving nasogastric tube feedings via a small-bore tube and a continuous pump infusion. He reports that he had a bad bout of severe coughing a few minutes ago but feels fine now. What action is best for the LPN/LVN to take?
- A. Record the coughing incident. No further action is required at this time.
- B. Stop the feeding, explain to the family why it is being stopped, and notify the healthcare provider.
- C. After clearing the tube with 30 ml of air, check the pH of fluid withdrawn from the tube.
- D. Inject 30 ml of air into the tube while auscultating the epigastrium for gurgling.
Correct answer: C
Rationale: After a client experiences severe coughing following nasogastric tube feedings, it is crucial to verify proper tube placement. Checking the pH of fluid withdrawn from the tube helps confirm the tube's correct positioning. Option A is incorrect because further action is necessary to ensure the client's safety. Option B is inappropriate as it suggests stopping the feeding without assessing the tube's placement. Option D is incorrect as injecting air into the tube may lead to further complications if the tube is not positioned correctly.
3. When assessing a client's IV for infiltration, which finding would be unexpected for the nurse?
- A. The area around the infusion site feels warm to the touch.
- B. The infusion site is swollen and cool to the touch.
- C. The infusion line does not flush properly.
- D. There is no blood return in the infusion line.
Correct answer: A
Rationale: The correct answer is A. Warmth around the infusion site is not an expected finding with infiltration. Infiltration typically presents with swelling and coolness due to the fluid leaking into the surrounding tissue. Choices B, C, and D are incorrect because swelling, coolness, and difficulty flushing the line, as well as lack of blood return, are commonly associated with infiltration.
4. When a client files a lawsuit against an LPN for malpractice, the client must prove that there is a link between the harm suffered and actions performed by the nurse that were negligent. This is known as:
- A. Evidence
- B. Tort discovery
- C. Proximate cause
- D. Common cause
Correct answer: C
Rationale: The correct answer is C, 'Proximate cause.' Proximate cause establishes the link between the harm suffered and the negligent actions performed by the nurse. In a malpractice lawsuit, proving proximate cause is essential to demonstrate that the nurse's actions directly led to the harm experienced by the client. Choice A, 'Evidence,' is incorrect as evidence is the information presented to support or refute a claim, not specifically the link between harm and negligence. Choice B, 'Tort discovery,' is incorrect as it does not specifically refer to establishing the link between harm and negligence. Choice D, 'Common cause,' is incorrect as it does not capture the legal concept of proximate cause in establishing liability in malpractice cases.
5. When taking a history of a 3-year-old with neuroblastoma, what comment by the parents requires follow-up and is consistent with the diagnosis?
- A. The child has been listless and has lost weight.
- B. The urine is dark yellow and in small amounts.
- C. Clothes are becoming tighter across her abdomen.
- D. We notice muscle weakness and some unsteadiness.
Correct answer: C
Rationale: The correct answer is C. Clothes becoming tighter across the abdomen is indicative of an abdominal mass, a common presentation in neuroblastoma. This symptom should be followed up on further as it aligns with the diagnosis. Choices A, B, and D are less specific to neuroblastoma. Weight loss and listlessness (Choice A) can be nonspecific symptoms, while dark yellow urine in small amounts (Choice B) may suggest dehydration or other conditions. Muscle weakness and unsteadiness (Choice D) could point towards various neurological or muscular issues but are not as directly related to neuroblastoma as the symptom described in Choice C.
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