HESI LPN
HESI Fundamentals Study Guide
1. When reviewing a client’s fluid and electrolyte status, what should the nurse report to the provider?
- A. Potassium 5.4
- B. Sodium 140
- C. Calcium 8.6
- D. Magnesium 2.0
Correct answer: A
Rationale: The correct answer is A: 'Potassium 5.4'. A potassium level of 5.4 is elevated (normal range is typically 3.5-5.0 mEq/L) and may indicate hyperkalemia, which can have serious cardiac implications. Elevated potassium levels can lead to life-threatening arrhythmias, so immediate reporting and intervention are necessary. Choice B, 'Sodium 140', falls within the normal range (135-145 mEq/L) and does not require immediate reporting. Choice C, 'Calcium 8.6', falls within the normal range (8.5-10.5 mg/dL) and is not an immediate concern. Choice D, 'Magnesium 2.0', is within the normal range (1.5-2.5 mEq/L) and does not need urgent reporting. Therefore, the nurse should prioritize reporting the elevated potassium level as it poses the most immediate risk.
2. The client is receiving discharge instructions for warfarin (Coumadin). Which statement by the client indicates a need for further teaching?
- A. I will avoid eating foods high in vitamin K.
- B. I will have my blood tested regularly to monitor my INR levels.
- C. I will take the medication at the same time every day.
- D. I will use a soft toothbrush to prevent bleeding gums.
Correct answer: A
Rationale: The correct answer is A. Clients taking warfarin need to be consistent with their vitamin K intake to maintain a balance in blood clotting. Avoiding foods high in vitamin K is essential as they can interfere with the medication's effectiveness. Choices B, C, and D are all correct statements regarding warfarin therapy. Regular blood testing to monitor INR levels ensures the medication is working effectively, taking the medication at the same time daily maintains a consistent level in the bloodstream, and using a soft toothbrush helps prevent gum bleeding due to warfarin's anticoagulant effects.
3. A nurse is planning care for a client who reports abdominal pain. An assessment by the nurse reveals the client has a temperature of 39.2°C (102°F), heart rate of 105/min, a soft tender abdomen, and menses overdue by 2 days. Which of the following findings should be the nurse’s priority?
- A. Temperature
- B. Menses overdue
- C. Soft tender abdomen
- D. Heart rate
Correct answer: A
Rationale: The correct answer is A: Temperature. A high temperature of 39.2°C (102°F) indicates a fever, which can be a sign of infection or another serious condition. Investigating the cause of the fever is a priority to address any underlying health issue promptly. Menses overdue (choice B) could be relevant but is not as urgent as addressing a fever. A soft tender abdomen (choice C) is important but may be a consequence of the underlying condition causing the fever. Heart rate (choice D) is also significant, but the priority here is to identify the cause of the fever.
4. A client is immobile due to a cast, and a nurse is assisting in the use of a fracture bedpan. Which of the following actions should the nurse take?
- A. Place the shallow end of the fracture pan under the client’s buttocks.
- B. Encourage the client to remain immobile on the fracture pan for 20 minutes.
- C. Keep the bed flat while the client is on the fracture pan.
- D. Hyperextend the client’s back while the fracture pan is in place.
Correct answer: A
Rationale: The correct action when using a fracture bedpan for an immobile client is to place the shallow end of the pan under the client's buttocks. This positioning helps in proper collection of feces without causing discomfort or injury. Encouraging the client to try to defecate for 20 minutes (Choice B) is inappropriate and unrealistic, as defecation should not be forced or timed. Keeping the bed flat (Choice C) is incorrect as elevating the head of the bed can help promote proper positioning for bedpan use. Hyperextending the client's back (Choice D) is contraindicated and can lead to discomfort and potential injury to the client.
5. A healthcare provider is caring for several clients who are receiving oxygen therapy. Which client should the provider assess most frequently for manifestations of oxygen toxicity?
- A. 100% oxygen via partial rebreathing mask
- B. 2 liters per minute via nasal cannula
- C. 4 liters per minute via simple mask
- D. 6 liters per minute via face mask
Correct answer: A
Rationale: When a client is receiving 100% oxygen via a partial rebreathing mask, there is a higher risk for oxygen toxicity due to the higher concentration of oxygen delivered. This client should be assessed most frequently for manifestations of oxygen toxicity. Choices B, C, and D are less likely to result in oxygen toxicity compared to 100% oxygen delivery via a partial rebreathing mask.
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