HESI LPN
HESI Fundamentals Study Guide
1. A client with a history of chronic renal failure is admitted with generalized edema. Which laboratory value should the LPN/LVN monitor to assess the client's fluid balance?
- A. Serum potassium
- B. Serum calcium
- C. Serum albumin
- D. Serum sodium
Correct answer: C
Rationale: The correct answer is C, Serum albumin. In clients with chronic renal failure and generalized edema, monitoring serum albumin levels is crucial as it is a key indicator of fluid balance. Low serum albumin levels can contribute to edema formation due to decreased oncotic pressure, indicating fluid imbalance. Serum potassium (Choice A) is more related to kidney function and electrolyte balance in renal failure patients. Serum calcium (Choice B) is important for bone health but is not directly related to fluid balance. Serum sodium (Choice D) is more indicative of hydration status and electrolyte balance but may not directly reflect fluid balance in the context of chronic renal failure and edema.
2. 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.
3. A client has a fecal impaction. Before digital removal of the mass, which of the following types of enemas should be administered to soften the feces?
- A. Oil retention
- B. Soapsuds
- C. Saline
- D. Hypertonic
Correct answer: A
Rationale: An oil retention enema is the most appropriate choice to soften and lubricate the feces before digital removal. Oil retention enemas help in making the stool easier to remove digitally due to their lubricating properties. Soapsuds, saline, and hypertonic enemas are not specifically designed to soften feces and are used for different purposes. Soapsuds enemas are used for cleansing, saline enemas for bowel evacuation, and hypertonic enemas for bowel distension in preparation for diagnostic procedures.
4. A client has a closed wound drainage system. Which of the following actions should the nurse take?
- A. Avoid pressing the container down to create a vacuum
- B. Wear sterile gloves while handling the drainage system
- C. Reset the container with the drainage port closed
- D. Maintain the drain in a dependent position to facilitate drainage
Correct answer: D
Rationale: In a closed wound drainage system, it is essential to maintain the drain in a dependent position to allow for proper drainage. Gravity aids in the flow of drainage, preventing fluid backflow or pooling. Avoiding pressing the container down to create a vacuum (Choice A) is crucial as it can lead to complications in the system. Wearing sterile gloves (Choice B) is important for infection control when handling the drainage system. Resetting the container with the drainage port closed (Choice C) is incorrect as it can cause spillage and contamination of the surrounding area.
5. 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.
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