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. 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.
3. A healthcare professional is administering 1 L of 0.9% sodium chloride to a client who is postoperative and has fluid volume deficit. Which of the following changes should the healthcare professional identify as an indication that the treatment was successful?
- A. Decrease in heart rate
- B. Fluid volume deficit causes tachycardia
- C. Decrease in blood pressure
- D. Increase in respiratory rate
Correct answer: A
Rationale: A decrease in heart rate can indicate that the fluid volume deficit is improving. In cases of fluid volume deficit, the body compensates by increasing the heart rate to maintain adequate perfusion. Therefore, a decrease in heart rate after fluid resuscitation suggests that the body's perfusion status is improving. Choices B, C, and D are incorrect because fluid volume deficit typically causes tachycardia, not a decrease in heart rate, and would not result in a decrease in blood pressure or an increase in respiratory rate as primary signs of improvement.
4. The patient is immobilized after undergoing hip replacement surgery. Which finding will alert the nurse to monitor for hemorrhage in this patient?
- A. Thick, tenacious pulmonary secretions
- B. Low-molecular-weight heparin doses
- C. SCDs wrapped around the legs
- D. Elastic stockings (TED hose)
Correct answer: B
Rationale: The correct answer is B, which is low-molecular-weight heparin doses. After hip replacement surgery, patients are at risk of developing deep vein thrombosis (DVT) due to immobility. Heparin and low-molecular-weight heparin are commonly used for prophylaxis against DVT. Monitoring for hemorrhage is crucial when administering anticoagulants. Choices A, C, and D are not directly related to monitoring for hemorrhage in this scenario. Thick, tenacious pulmonary secretions (Choice A) may indicate respiratory issues, SCDs (Choice C) help prevent DVT but do not directly relate to hemorrhage monitoring, and elastic stockings (TED hose) (Choice D) are used for DVT prophylaxis but do not alert to hemorrhage.
5. While caring for an older adult client who is violent and attempting to disconnect her IV lines, the provider prescribes soft wrist restraints. Which of the following actions should the nurse take while the client is in restraints?
- A. Remove the restraints one at a time
- B. Secure the restraints tightly to prevent movement
- C. Check the restraints every hour
- D. Use leather restraints for additional security
Correct answer: A
Rationale: Removing restraints one at a time is the correct action to take when caring for a client in soft wrist restraints. This approach ensures safety and comfort while still maintaining the necessary restrictions. Choice B is incorrect as securing the restraints tightly can lead to circulatory issues and discomfort. Choice C of checking the restraints every hour is a reasonable action, but it is not the priority when compared to the correct choice of removing the restraints one at a time. Choice D of using leather restraints for additional security is unnecessary and may be more restrictive and uncomfortable for the client.
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