HESI LPN
HESI Fundamental Practice Exam
1. A healthcare professional is preparing to administer dextrose 5% in water (D5W) 1,000-mL IV to infuse over 10 hr. How many mL/hr should the IV infusion pump be set to deliver? (Round the answer to the nearest whole number. Do not use a trailing zero.)
- A. 100 mL/hr
- B. 150 mL/hr
- C. 75 mL/hr
- D. 50 mL/hr
Correct answer: A
Rationale: To infuse 1,000 mL over 10 hr, the IV pump should be set to deliver 100 mL/hr. This calculation is derived by dividing the total volume (1,000 mL) by the total time in hours (10 hr), resulting in the infusion rate of 100 mL/hr. Choices B, C, and D are incorrect as they do not accurately reflect the correct calculation for this scenario.
2. What action should the nurse take to prevent the development of deep vein thrombosis (DVT) in a client who is postoperative day 2 following hip replacement surgery?
- A. Encourage the client to remain on bed rest as much as possible.
- B. Apply sequential compression devices (SCDs) to the client's legs.
- C. Massage the client's legs to improve circulation.
- D. Encourage the client to perform ankle and foot exercises.
Correct answer: B
Rationale: The correct action to prevent DVT in a postoperative client is to apply sequential compression devices (SCDs) to promote venous return. This helps prevent stasis of blood in the lower extremities, reducing the risk of clot formation. Encouraging bed rest (Choice A) may lead to decreased mobility and increase the risk of DVT. Massaging the client's legs (Choice C) is contraindicated in the presence of DVT as it can dislodge a clot. Encouraging ankle and foot exercises (Choice D) may be beneficial for circulation, but SCDs are more effective at preventing DVT in this scenario.
3. When assessing a male client, the nurse finds that he is fatigued and is experiencing muscle weakness, leg cramps, and cardiac dysrhythmias. Based on these findings, the nurse plans to check the client's laboratory values to validate the existence of which condition?
- A. Hyperphosphatemia
- B. Hypocalcemia
- C. Hypermagnesemia
- D. Hypokalemia
Correct answer: D
Rationale: The symptoms of muscle weakness, leg cramps, and cardiac dysrhythmias are indicative of hypokalemia, a condition characterized by low potassium levels. Checking the client's laboratory values for potassium will help confirm this diagnosis. Hyperphosphatemia (Choice A) is an elevated phosphate level in the blood, which is not consistent with the symptoms described. Hypocalcemia (Choice B) is a low calcium level and typically presents with different symptoms than those mentioned in the scenario. Hypermagnesemia (Choice C) is an excess of magnesium in the blood and does not align with the symptoms of muscle weakness, leg cramps, and cardiac dysrhythmias observed in the client.
4. An assistive personnel says to the nurse, “This client is incontinent of stool three or four times a day. I get angry, and I think that the client is doing it just to get attention. I think we should put adult diapers on her.†Which is the appropriate nursing response?
- A. You should report this to the supervisor
- B. It is very upsetting to see an adult client regress
- C. Diapers are the best solution
- D. The client’s condition is not your concern
Correct answer: B
Rationale: The correct response is 'It is very upsetting to see an adult client regress.' In this situation, the nurse should acknowledge the emotional impact of caregiving on the assistive personnel and address it professionally. Choice A is incorrect because reporting to the supervisor may not directly address the emotional concerns raised. Choice C is incorrect because immediately resorting to diapers without further assessment or intervention is not the most appropriate solution. Choice D is incorrect as the client's well-being and care are a shared responsibility among healthcare team members.
5. When performing cardiac chest compressions, what is a critical concept that the nurse must understand?
- A. Push hard and deep on the chest
- B. Compress the chest at a rapid rate
- C. Perform compressions with minimal interruptions
- D. Use a two-handed technique for compressions
Correct answer: A
Rationale: The correct answer is to 'Push hard and deep on the chest.' Effective chest compressions during CPR should be forceful and deep enough to adequately circulate blood to vital organs. This helps maintain perfusion and increases the likelihood of a successful outcome. Compressing the chest at a rapid rate (choice B) is important but not as critical as ensuring the compressions are hard and deep. Performing compressions with minimal interruptions (choice C) is also crucial to maintain blood flow. Using a two-handed technique for compressions (choice D) may be helpful but is not as critical as the depth and force of the compressions.
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