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. The patient has been in bed for several days and needs to be ambulated. Which action will the nurse take first?
- A. Maintain a narrow base of support.
- B. Dangle the patient at the bedside.
- C. Encourage isometric exercises.
- D. Suggest a high-calcium diet.
Correct answer: B
Rationale: The correct action the nurse should take first when a patient needs to be mobilized after being in bed for several days is to dangle the patient at the bedside. Dangling at the bedside is the initial step to assess the patient's tolerance to sitting up and moving. It helps prevent orthostatic hypotension and allows the nurse to evaluate the patient's response to upright positioning before attempting further ambulation. Maintaining a narrow base of support (Choice A) is related to assisting with ambulation but is not the first step. Encouraging isometric exercises (Choice C) and suggesting a high-calcium diet (Choice D) are not immediate actions needed to initiate mobilization in this scenario.
3. The healthcare provider prescribes morphine sulfate 4mg IM STAT. Morphine comes in 8 mg per ml. How many ml should the LPN/LVN administer?
- A. 0.5 ml
- B. 1 ml
- C. 1.5 ml
- D. 2 ml
Correct answer: A
Rationale: To administer 4 mg of morphine, as prescribed, the LPN/LVN needs to calculate the correct volume based on the concentration provided (8 mg per ml). Since the desired dose is 4 mg, half of 8 mg (0.5 ml) is required to administer the correct amount. Therefore, the correct answer is 0.5 ml. Choices B, C, and D are incorrect as they would either underdose or overdose the patient.
4. During the physical assessment of a client, which technique should a nurse use when performing a Romberg's test?
- A. Touch the client's face with a cotton ball
- B. Apply a vibrating tuning fork to the client's forehead
- C. Have the client stand with arms at her sides and feet together
- D. Perform direct percussion over the area of the kidneys
Correct answer: C
Rationale: During a Romberg's test, the nurse assesses the client's balance. Having the client stand with arms at her sides and feet together is the correct technique. This position helps the nurse observe for swaying or loss of balance, indicating alterations in balance. Choices A and B are incorrect as they are not part of Romberg's test and do not assess balance. Choice D is also incorrect as direct percussion over the kidneys is not associated with a Romberg's test.
5. During a mass casualty event, a nurse is caring for multiple clients. Which of the following clients is the nurse’s priority?
- A. A client who received crush injuries to the chest and abdomen and is expected to die.
- B. A client who has a 4-inch laceration to the head.
- C. A client who has partial-thickness and full-thickness burns to his face, neck, and chest.
- D. A client who has a fractured fibula and tibia.
Correct answer: C
Rationale: During a mass casualty event, the priority client for the nurse is the one with partial-thickness and full-thickness burns to the face, neck, and chest. Clients with severe burns in critical areas require immediate attention due to the potential for life-threatening complications such as airway compromise, fluid loss, and infection. Crush injuries and fractures, although serious, are generally less urgent in comparison and can be managed after addressing the burns. Therefore, the client with burns to the face, neck, and chest should be the nurse's priority over the other clients described.
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