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. A client with limited mobility in his lower extremities is being cared for by a nurse. Which of the following actions should the nurse take to prevent skin breakdown?
- A. Place the client in high-Fowler's position
- B. Increase the client's intake of carbohydrates
- C. Massage the reddened areas with unscented lotion
- D. Have the client use a trapeze bar when changing positions
Correct answer: D
Rationale: The correct answer is to have the client use a trapeze bar when changing positions. This action helps in repositioning without causing friction or shearing, which can lead to skin breakdown. Placing the client in high-Fowler's position (Choice A) may not directly prevent skin breakdown related to limited mobility. Increasing carbohydrate intake (Choice B) is not relevant to preventing skin breakdown. Massaging reddened areas with lotion (Choice C) can potentially cause more harm by increasing friction and damaging the skin further, rather than preventing breakdown.
3. A client with a history of alcoholism is admitted with confusion and ataxia. The LPN/LVN recognizes that these symptoms may be related to a deficiency in which vitamin?
- A. Vitamin A
- B. Vitamin C
- C. Vitamin D
- D. Vitamin B1 (Thiamine)
Correct answer: D
Rationale: The correct answer is Vitamin B1 (Thiamine). Vitamin B1 deficiency, also known as Thiamine deficiency, is common in clients with a history of alcoholism. Thiamine is essential for proper brain function, and its deficiency can lead to neurological symptoms such as confusion and ataxia. Vitamin A, C, and D deficiencies do not typically present with confusion and ataxia in the context of alcoholism. Vitamin A deficiency mainly affects vision, Vitamin C deficiency leads to scurvy with symptoms like bleeding gums, and Vitamin D deficiency is associated with bone disorders. Therefore, they are not the correct choices in this scenario.
4. A healthcare professional is reviewing measures to prevent back injuries with assistive personnel (AP). Which of the following instructions should the healthcare professional include?
- A. When lifting an object, spread your feet apart to provide a wide base of support.
- B. Always lift objects with your back straight and not your legs.
- C. Avoid using any assistive devices.
- D. Bend at the waist to reach objects.
Correct answer: A
Rationale: The correct instruction to prevent back injuries while lifting is to spread your feet apart to provide a wide base of support. This helps in maintaining stability and reduces the risk of back injury. Choice B is incorrect as lifting objects with your back straight and using your legs is the recommended technique. Choice C is incorrect because assistive devices can actually help prevent back injuries by providing support. Choice D is incorrect as bending at the waist to reach objects can strain the back muscles and increase the risk of injury.
5. A nurse is reviewing evidence-based practice principles about the administration of oxygen therapy with a newly licensed nurse. Which of the following actions should the nurse include?
- A. Regulate oxygen via nasal cannula at a flow rate no more than 6 L/min
- B. Administer oxygen at a higher flow rate for better saturation
- C. Use a high-flow nasal cannula for all clients
- D. Adjust oxygen flow based on client comfort
Correct answer: A
Rationale: The correct answer is A. Regulating oxygen flow at no more than 6 L/min via nasal cannula is a safe practice to prevent potential complications such as oxygen toxicity. Option B suggesting administering oxygen at a higher flow rate for better saturation is incorrect as it can lead to adverse effects. Option C is incorrect because using a high-flow nasal cannula for all clients is not necessary and should be based on individual client needs. Option D is incorrect as adjusting oxygen flow solely based on client comfort without considering the prescribed flow rate can compromise the effectiveness of oxygen therapy.
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