HESI LPN
HESI Fundamentals Study Guide
1. A client has been admitted to the hospital with severe diarrhea. The nurse should monitor the client for which complication?
- A. Metabolic acidosis
- B. Metabolic alkalosis
- C. Hyperkalemia
- D. Hypercalcemia
Correct answer: A
Rationale: Severe diarrhea can lead to metabolic acidosis due to the loss of bicarbonate. When there is excessive loss of bicarbonate through diarrhea, the pH of the blood decreases, leading to metabolic acidosis. Metabolic alkalosis (Choice B) is not typically associated with severe diarrhea as it involves elevated pH and bicarbonate levels. Hyperkalemia (Choice C) is less likely with severe diarrhea as potassium is often lost along with fluids. Hypercalcemia (Choice D) is not a common complication of severe diarrhea; instead, hypocalcemia may occur due to malabsorption of calcium.
2. When assessing a client with wrist restraints, the nurse observes that the fingers on the right hand are blue. What action should the nurse implement first?
- A. Loosen the right wrist restraint.
- B. Apply a pulse oximeter to the right hand.
- C. Compare hand color bilaterally.
- D. Palpate the right radial pulse.
Correct answer: A
Rationale: The correct action to take first when observing blue fingers in a client with wrist restraints is to loosen the right wrist restraint. Blue fingers indicate compromised circulation, and loosening the restraint can help restore blood flow to the area. Applying a pulse oximeter (Choice B) or palpating the right radial pulse (Choice D) may be necessary following the loosening of the restraint to assess the client's oxygen saturation and pulse. Comparing hand color bilaterally (Choice C) is important but not the immediate action needed when a circulation issue is noted in one hand.
3. When evaluating a client's use of a cane, which action should the nurse identify as an indication of correct use?
- A. The client's stronger side holds the cane
- B. The top of the cane is parallel to the client's waist
- C. The client holds the cane on the stronger side of their body
- D. The client moves the cane 46 cm (18 in) forward
Correct answer: C
Rationale: The correct way to use a cane is to hold it on the stronger side of the body. This helps to provide support and maintain alignment. Option A is incorrect because the cane should be held on the stronger side, not the weaker side. Option B is incorrect as the top of the cane should be at the level of the greater trochanter, not the waist. Option D is incorrect because the client should move the weaker limb forward with the cane for stability.
4. When assessing readiness to learn about insulin self-administration, what indicates the client is ready to learn?
- A. I can concentrate best in the morning.
- B. I feel anxious about learning the process.
- C. I have a lot of questions about insulin.
- D. I am not sure if I can manage this at home.
Correct answer: A
Rationale: The correct answer is A: 'I can concentrate best in the morning.' Readiness to learn is indicated by the client's ability to focus and concentrate, as mentioned in the question. Choice B, 'I feel anxious about learning the process,' indicates apprehension and may hinder the learning process. Choice C, 'I have a lot of questions about insulin,' shows interest but does not directly indicate readiness to learn. Choice D, 'I am not sure if I can manage this at home,' reflects uncertainty and lack of confidence, which may suggest the client is not fully prepared to learn.
5. A healthcare professional is preparing to administer IV fluids to a client. The professional notes sparks when plugging in the IV pump. Which of the following actions should the professional take first?
- A. Label the pump with a defective equipment sticker.
- B. Unplug the pump.
- C. Obtain a replacement pump.
- D. Notify the maintenance department to fix the pump.
Correct answer: B
Rationale: Unplugging the pump is the correct initial action in this situation to prevent any potential fire hazards. Sparks when plugging in the IV pump indicate an electrical issue that can lead to a fire. By immediately unplugging the pump, the healthcare professional ensures the safety of the client and prevents any further risks. Labeling the pump with a defective equipment sticker (Choice A) is not the priority as the immediate concern is safety. Obtaining a replacement pump (Choice C) can be considered after addressing the safety issue. Notifying the maintenance department (Choice D) is important but should follow the immediate action of unplugging the pump to mitigate the risk.
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