HESI LPN
HESI Practice Test for Fundamentals
1. The client is advised to take dexamethasone (Decadron) with food or milk. What is the physiological basis for this advice?
- A. Inhibits pepsin production
- B. Stimulates hydrochloric acid production
- C. Delays stomach emptying time
- D. Reduces hydrochloric acid production
Correct answer: B
Rationale: The correct answer is B: Stimulates hydrochloric acid production. Dexamethasone can stimulate the production of hydrochloric acid in the stomach, which may lead to irritation of the stomach lining. Taking dexamethasone with food or milk helps to neutralize or buffer the acid, reducing the risk of stomach irritation. Choice A is incorrect because dexamethasone does not inhibit pepsin production. Choice C is incorrect as dexamethasone does not slow stomach emptying time. Choice D is incorrect as dexamethasone does not reduce hydrochloric acid production.
2. A client reports constipation, and a nurse is providing dietary teaching. Which of the following foods should the nurse recommend?
- A. Macaroni and cheese
- B. One medium apple with skin
- C. One cup of plain yogurt
- D. Roast chicken and white rice
Correct answer: B
Rationale: The correct answer is B: One medium apple with skin. Foods high in fiber, like apples with skin, are recommended to relieve constipation due to their fiber content, which aids in bowel regularity. Macaroni and cheese, yogurt, and roast chicken with white rice do not provide as much fiber and are less effective in alleviating constipation. While yogurt can sometimes contain probiotics that support gut health, it is not as effective in treating constipation as high-fiber foods like apples.
3. 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.
4. The nurse is caring for a 17-month-old child with acetaminophen poisoning. Which laboratory reports should the nurse review first?
- A. Prothrombin time (PT) and partial thromboplastin time (PTT)
- B. Red blood cell and white blood cell counts
- C. Blood urea nitrogen and creatinine levels
- D. Liver enzymes (AST and ALT)
Correct answer: D
Rationale: In acetaminophen poisoning, liver damage is a significant concern due to the drug's metabolism in the liver. Monitoring liver enzymes such as AST and ALT is crucial as they indicate liver function and damage. Prothrombin time (PT) and partial thromboplastin time (PTT) (Choice A) are coagulation studies and are not the priority in acetaminophen poisoning. Red blood cell and white blood cell counts (Choice B) are not directly related to acetaminophen poisoning. Blood urea nitrogen and creatinine levels (Choice C) assess kidney function, but liver enzymes are more specific for evaluating liver damage in acetaminophen poisoning.
5. A client is receiving morphine via PCA infusion device after abdominal surgery. Which of the following statements indicates that the client knows how to use the device?
- A. I'll wait to use the device until it's absolutely necessary.
- B. I'll be careful about pushing the button too much to avoid an overdose.
- C. I should tell the nurse if the pain doesn't stop while I am using this device.
- D. I will ask my adult child to push the dose button when I am sleeping.
Correct answer: C
Rationale: Choice C is the correct answer because it demonstrates that the client understands the importance of communicating with the nurse if the pain persists while using the PCA device. This is crucial as it ensures proper pain management and monitoring. Choices A and B are incorrect because delaying the use of the device until necessary or being cautious about pushing the button too much do not necessarily reflect understanding of using the PCA device effectively. Choice D is incorrect as having someone else, like an adult child, push the dose button goes against the principle of the client self-administering the medication through the PCA device.
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