HESI LPN
HESI Fundamentals Study Guide
1. The caregiver is teaching parents about the diet for a 4-month-old infant with gastroenteritis and mild dehydration. In addition to oral rehydration fluids, the diet should include
- A. Formula or breast milk
- B. Broth and tea
- C. Rice cereal and apple juice
- D. Gelatin and ginger ale
Correct answer: A
Rationale: The correct answer is A: Formula or breast milk. In infants with gastroenteritis and mild dehydration, it is essential to continue feeding them with formula or breast milk along with oral rehydration fluids to provide adequate nutrition and maintain hydration. Option B, broth and tea, may not provide the necessary nutrients and electrolytes needed for the infant's recovery. Option C, rice cereal and apple juice, can be harsh on the digestive system and may exacerbate diarrhea. Option D, gelatin and ginger ale, do not provide the necessary nutrients and can worsen the condition due to the high sugar content in ginger ale.
2. When planning interventions for a group of clients who are obese, what can the nurse do to improve their commitment to a long-term goal of weight loss?
- A. Developing a strict diet plan
- B. Attempting to develop the clients’ self-motivation
- C. Providing frequent rewards
- D. Encouraging group exercise
Correct answer: B
Rationale: To improve clients' commitment to a long-term goal of weight loss, attempting to develop their self-motivation is crucial. Self-motivation is essential for sustaining behavior changes over time. Providing a strict diet plan (choice A) may not address the root motivation needed for long-term success. While rewards (choice C) can be motivating, relying solely on external rewards may not foster the intrinsic motivation required for sustained weight loss. Encouraging group exercise (choice D) is beneficial, but without addressing individual motivation, it may not lead to long-term commitment to weight loss goals.
3. A client with heart failure and a new prescription for hydrochlorothiazide is receiving discharge teaching about safety considerations from a nurse. Which statement by the client indicates an understanding of the teaching?
- A. “I will take a hot bath before going to bed.”
- B. “I will take my new medication in the evening.”
- C. “I will leave a light on in my bathroom at night.”
- D. “I will weigh myself once weekly.”
Correct answer: C
Rationale: The correct answer is C. Leaving a light on in the bathroom at night is important for an older adult with heart failure who is taking hydrochlorothiazide, a diuretic that can cause nocturia. This safety measure helps prevent falls during nighttime bathroom visits. Option A is incorrect because taking a hot bath before bed can increase the risk of falls due to potential dizziness. Option B does not directly relate to safety considerations but rather the timing of medication administration. Option D, weighing oneself once weekly, is important for monitoring fluid retention but does not address safety concerns related to nocturia and falls.
4. The healthcare professional prepares a 1,000 ml IV of 5% dextrose and water to be infused over 8 hours. The infusion set delivers 10 drops per milliliter. The healthcare professional should regulate the IV to administer approximately how many drops per minute?
- A. 80
- B. 8
- C. 21
- D. 25
Correct answer: C
Rationale: To calculate the drops per minute for the IV infusion, first determine the total drops to be infused over 8 hours. 1,000 ml to be infused over 8 hours means 125 ml per hour (1000 ml / 8 hours = 125 ml/hr). Since the infusion set delivers 10 drops per ml, 125 ml/hr x 10 drops/ml = 1250 drops/hr. To find drops per minute, divide the drops per hour by 60 (minutes in an hour): 1250 drops/hr / 60 minutes = 20.83 drops/minute, which rounds up to 21 drops per minute (Option C). This rate ensures the correct infusion rate over 8 hours. Choices A, B, and D are incorrect calculations and do not provide the appropriate infusion rate needed to administer the IV over the specified time period.
5. A nurse is providing care to a 17-year-old client in the post-operative care unit (PACU) after an emergency appendectomy. Which finding is an early indication that the client is experiencing poor oxygenation?
- A. Abnormal breath sounds
- B. Cyanosis of the lips
- C. Increasing pulse rate
- D. Pulse oximeter reading of 92%
Correct answer: C
Rationale: An increasing pulse rate can be an early sign of poor oxygenation as the body tries to compensate. Abnormal breath sounds (choice A) can indicate respiratory issues, but they may not always be an early sign of poor oxygenation. Cyanosis of the lips (choice B) is a late sign of inadequate oxygenation. A pulse oximeter reading of 92% (choice D) indicates mild hypoxemia but may not be considered an early indication of poor oxygenation.
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