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 brought to the emergency department following a motor vehicle accident. The patient is unresponsive. The driver's license states that glasses are needed to operate a motor vehicle, but no glasses were brought in with the patient. Which action should the nurse take next?
- A. Stand to the side of the patient's eye and observe the cornea.
- B. Conclude that the glasses were lost during the accident.
- C. Notify the ambulance personnel about the missing glasses.
- D. Ask the patient where the glasses are.
Correct answer: A
Rationale: In this scenario, the nurse should stand to the side of the patient's eye and observe the cornea. This action is crucial in assessing whether the patient wears contact lenses, especially in unresponsive patients. Observing the cornea can provide valuable information about the patient's eye health and potential use of contact lenses. Choices B, C, and D are incorrect. Concluding that the glasses were lost during the accident is premature without proper assessment. Notifying ambulance personnel about the missing glasses may not be the immediate priority, and asking the unresponsive patient about the glasses would not yield useful information in this situation.
3. A nurse delegates a position change to a nursing assistive personnel. The nurse instructs the assistive personnel (AP) to place the patient in the lateral position. Which finding by the nurse indicates a correct outcome?
- A. Patient is lying on side.
- B. Patient is lying on back.
- C. Patient is lying semiprone.
- D. Patient is lying on abdomen.
Correct answer: A
Rationale: The correct answer is A: 'Patient is lying on side.' In the side-lying (or lateral) position, the patient rests on the side with the major portion of body weight on the dependent hip and shoulder. Choice B, 'Patient is lying on back,' is incorrect as it describes a supine position. Choice C, 'Patient is lying semiprone,' is incorrect as it refers to a position where the patient is partially lying on the abdomen. Choice D, 'Patient is lying on abdomen,' is incorrect as it describes a prone position where the patient is lying face down.
4. A client is to have mafenide (Sulfamylon) cream applied to burned areas. For which serious side effect of mafenide therapy should the LPN/LVN monitor this client?
- A. Curling ulcer
- B. Renal shutdown
- C. Metabolic acidosis
- D. Hemolysis of red blood cells
Correct answer: C
Rationale: Corrected Rationale: Metabolic acidosis is a serious side effect of mafenide therapy that should be closely monitored. Mafenide can lead to metabolic acidosis due to its inhibition of carbonic anhydrase, resulting in the accumulation of carbonic acid. Curling ulcer (Choice A) is a stress-related mucosal lesion that occurs in the duodenum, primarily due to severe burns, not directly related to mafenide therapy. Renal shutdown (Choice B) is not a common side effect of mafenide therapy. Hemolysis of red blood cells (Choice D) is not a recognized side effect of mafenide cream application.
5. The caregiver is teaching parents about accidental poisoning in children. Which point should be emphasized?
- A. Call the Poison Control Center as soon as the situation is identified
- B. Empty the child's mouth in any case of possible poisoning
- C. Have the child move minimally if a toxic substance was inhaled
- D. Do not induce vomiting if the poison is a hydrocarbon
Correct answer: B
Rationale: The correct answer is to emphasize emptying the child's mouth in any case of possible poisoning. This action is crucial to prevent further ingestion of the poisonous substance. Choice A is incorrect because calling the Poison Control Center should be one of the first steps, not waiting until the situation is identified. Choice C is incorrect as moving the child may spread or exacerbate the effects of the toxic substance. Choice D is incorrect because inducing vomiting can be harmful if the poison is a hydrocarbon, as it may lead to aspiration.
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