HESI LPN
HESI Fundamentals Study Guide
1. To use proper body mechanics while making an occupied bed for a client on bed rest, the nurse should:
- A. Place the bed in a high horizontal position
- B. Use a low bed position
- C. Bend at the waist
- D. Keep the bed flat and at a comfortable working height
Correct answer: A
Rationale: When making an occupied bed for a client on bed rest, the nurse should place the bed in a high horizontal position to promote better body mechanics. This positioning helps reduce strain on the nurse's back and promotes proper alignment while working. Using a low bed position can lead to awkward bending and increased risk of musculoskeletal injuries. Bending at the waist is discouraged as it can strain the back. Keeping the bed flat and at a comfortable working height may not provide the optimal ergonomic setup needed to prevent injury.
2. A nurse is caring for a client who has a new prescription for tube feeding. The nurse understands that the provider prescribed tube feeding because the client:
- A. Is unable to swallow foods by mouth
- B. Has a gastrointestinal obstruction
- C. Requires additional caloric intake to support healing
- D. Is at risk for aspiration
Correct answer: A
Rationale: The correct answer is A: 'Is unable to swallow foods by mouth.' Tube feeding is prescribed when a client is unable to safely swallow food by mouth but has a functional gastrointestinal tract. Option B, 'Has a gastrointestinal obstruction,' is incorrect as tube feeding is not typically prescribed for this reason. Option C, 'Requires additional caloric intake to support healing,' is incorrect because tube feeding is specifically for clients who are unable to swallow. Option D, 'Is at risk for aspiration,' is also incorrect as tube feeding would not be the primary intervention for aspiration risk; other strategies to reduce aspiration risk would be implemented instead.
3. The provider orders Lanoxin (digoxin) 0.125 mg PO and furosemide 40 mg every day. Which of these foods would the nurse reinforce for the client to eat at least daily?
- A. Spaghetti
- B. Watermelon
- C. Chicken
- D. Tomatoes
Correct answer: B
Rationale: The correct answer is B: Watermelon. Watermelon is high in potassium, which is important to eat daily when taking furosemide to prevent hypokalemia. Furosemide is a diuretic that can lead to potassium loss, so consuming potassium-rich foods like watermelon helps maintain adequate potassium levels. Spaghetti, chicken, and tomatoes are not as high in potassium and therefore not as beneficial in preventing hypokalemia related to furosemide use.
4. Heparin 20,000 units in 500 ml D5W at 50 ml/hour has been infusing for 5.5 hours. How much heparin has the client received?
- A. 11,000 units.
- B. 13,000 units.
- C. 15,000 units.
- D. 17,000 units.
Correct answer: A
Rationale: To calculate the total amount of heparin received, multiply the infusion rate (50 ml/hour) by the total infusion time (5.5 hours). This results in 275 ml of the solution infused. Since there are 20,000 units of heparin in 500 ml, there are 800 units per ml. Therefore, 275 ml contains 220,000 units. However, the heparin is diluted in 500 ml, so the client has received half of this amount, which is 110,000 units. Therefore, the correct answer is 11,000 units. Choices B, C, and D are incorrect as they do not reflect the correct calculation based on the provided information.
5. What is the most important assessment for the LPN/LVN to perform on a client with a history of chronic obstructive pulmonary disease (COPD) receiving oxygen therapy at 2 liters per minute via nasal cannula?
- A. Assess the client's respiratory rate and effort.
- B. Measure the client's oxygen saturation level.
- C. Monitor the client's arterial blood gas levels.
- D. Check the client's blood pressure.
Correct answer: B
Rationale: Measuring the client's oxygen saturation level is the most important assessment in this scenario. Oxygen saturation level reflects how well the client is oxygenating, which is crucial in assessing the effectiveness of oxygen therapy for a client with COPD. Monitoring the respiratory rate and effort (Choice A) is important but assessing oxygenation with saturation levels takes precedence. While arterial blood gas levels (Choice C) provide comprehensive information, checking oxygen saturation is a quicker and more immediate way to assess oxygenation status. Checking blood pressure (Choice D) is not the priority when evaluating the effectiveness of oxygen therapy in COPD.
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