HESI LPN
HESI Fundamental Practice Exam
1. A client with a diagnosis of deep vein thrombosis (DVT) is receiving anticoagulation therapy. Which of the following laboratory values would be most concerning?
- A. INR of 1.5
- B. Platelet count of 200,000/mm³
- C. Hemoglobin of 12 g/dL
- D. aPTT of 70 seconds
Correct answer: A
Rationale: An INR of 1.5 is below the therapeutic range for clients on anticoagulation therapy, increasing the risk of clot formation. A lower INR indicates inadequate anticoagulation, which can lead to thrombus formation and potential complications such as progression or recurrence of deep vein thrombosis. Platelet count, hemoglobin level, and aPTT are important parameters to monitor in a client with DVT. However, in this scenario, the most concerning value is the suboptimal INR level because it signifies a lack of anticoagulation effectiveness and poses a higher risk of clotting issues.
2. 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 Auscultating 2.5 cm above the umbilicus while injecting sterile water (choice D) is an outdated method and is not recommended for verifying NG tube placement.
3. The nurse is caring for a client who is receiving 24-hour total parenteral nutrition (TPN) via a central line at 54 ml/hr. When initially assessing the client, the nurse notes that the TPN solution has run out and the next TPN solution is not available. What immediate action should the nurse take?
- A. Infuse normal saline at a keep-vein-open rate.
- B. Discontinue the IV and flush the port with heparin.
- C. Infuse 10% dextrose and water at 54 ml/hr.
- D. Obtain a stat blood glucose level and notify the healthcare provider.
Correct answer: C
Rationale: Infusing 10% dextrose and water at 54 ml/hr is the correct action to prevent hypoglycemia until the next TPN solution becomes available. This solution will help maintain the client's glucose levels. Infusing normal saline at a keep-vein-open rate (Choice A) is not appropriate for maintaining glucose levels and would not address the nutritional needs provided by TPN. Discontinuing the IV and flushing the port with heparin (Choice B) is unnecessary and not indicated in this situation as the client still needs fluid and nutrition. Obtaining a stat blood glucose level and notifying the healthcare provider (Choice D) can be done later but is not the immediate action required when the TPN solution has run out.
4. A nurse is preparing to administer an injection of an opioid medication to a client. The nurse draws out 1 mL of the medication from a 2 mL vial. Which of the following actions should the nurse take?
- A. Ask another nurse to observe the medication wastage
- B. Notify the pharmacy when wasting the medication
- C. Lock the remaining medication in the controlled substance cabinet
- D. Dispose of the vial with the remaining medication in a sharps container
Correct answer: A
Rationale: In medication wastage situations involving controlled substances, it is crucial to have a second nurse observe and verify the disposal process. This practice ensures accountability and prevents any mishandling or diversion of the medication. Choice B is incorrect because notifying the pharmacy is not the immediate action required in this scenario. Choice C is incorrect as locking the remaining medication in the controlled substance cabinet without proper witnessing does not ensure accountability. Choice D is incorrect as disposing of the vial with the remaining medication in a sharps container does not address the need for a witness to verify the wastage of the controlled substance.
5. A client with limited mobility in his lower extremities is being cared for by a nurse. Which of the following actions should the nurse take to prevent skin breakdown?
- A. Place the client in high-Fowler's position
- B. Increase the client's intake of carbohydrates
- C. Massage the reddened areas with unscented lotion
- D. Have the client use a trapeze bar when changing positions
Correct answer: D
Rationale: The correct answer is to have the client use a trapeze bar when changing positions. This action helps in repositioning without causing friction or shearing, which can lead to skin breakdown. Placing the client in high-Fowler's position (Choice A) may not directly prevent skin breakdown related to limited mobility. Increasing carbohydrate intake (Choice B) is not relevant to preventing skin breakdown. Massaging reddened areas with lotion (Choice C) can potentially cause more harm by increasing friction and damaging the skin further, rather than preventing breakdown.
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