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. Which of the following manifestations confirms the presence of pediculosis capitis in students?
- A. Scratching the head more than usual
- B. Flakes evident on a student's shoulders
- C. Oval pattern occipital hair loss
- D. Whitish oval specks sticking to the hair
Correct answer: D
Rationale: The correct answer is D. Whitish oval specks sticking to the hair shaft are nits, which are a definitive sign of pediculosis capitis (head lice). A: Scratching the head more than usual is a common symptom but not confirmatory of head lice infestation. B: Flakes evident on a student's shoulders may indicate dandruff or dry scalp, not necessarily head lice. C: Oval pattern occipital hair loss is not a typical manifestation of pediculosis capitis.
3. When reviewing car seat use with the parents of a 1-month-old infant, which of the following instructions should the nurse include?
- A. Use a car seat that has a three-point harness system.
- B. Position the car seat so that the infant is rear-facing.
- C. Secure the car seat in the front passenger seat of the vehicle.
- D. Convert to a booster seat after 12 months.
Correct answer: B
Rationale: The correct instruction for car seat use with a 1-month-old infant is to position the car seat so that the infant is rear-facing. This orientation provides the safest option for infants as it supports their head, neck, and spine. While using a car seat with a three-point harness system is appropriate for infants, placing the car seat in the front passenger seat is not recommended due to the presence of airbags, which can pose a risk to the infant in the event of deployment. Additionally, transitioning to a booster seat is not suitable at 12 months; infants should remain in rear-facing car seats until they outgrow the seat's height or weight limits, typically around 2 years of age.
4. The healthcare professional is assessing a client with a history of rheumatoid arthritis. Which of the following assessment findings would be most concerning?
- A. Morning stiffness
- B. Joint deformities
- C. Fever
- D. Weight loss
Correct answer: C
Rationale: In a client with rheumatoid arthritis, the presence of fever is most concerning because it may indicate an infection or systemic involvement, necessitating immediate attention. Morning stiffness and joint deformities are common manifestations of rheumatoid arthritis itself and are expected findings in these clients. Weight loss can occur in rheumatoid arthritis due to various factors such as decreased appetite or systemic inflammation, but it is not as acutely concerning as fever, which may signal a more urgent issue.
5. What is the most suitable snack food for the LPN/LVN to offer a client with myasthenia gravis who is at risk for altered nutritional status?
- A. Chocolate pudding.
- B. Graham crackers.
- C. Sugar-free gelatin.
- D. Apple slices.
Correct answer: A
Rationale: Chocolate pudding is the best snack food choice for a client with myasthenia gravis at risk for altered nutritional status due to its nutrient density and soft texture, which can be easier for clients with swallowing difficulties to consume. Graham crackers, sugar-free gelatin, and apple slices may not provide the same level of nutrient density or ease of consumption for these clients. Graham crackers and apple slices may also pose challenges for clients with swallowing difficulties, while sugar-free gelatin, although a good option for some clients, may not offer the same level of nutrition as chocolate pudding.
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