HESI LPN
Pediatric HESI Test Bank
1. An infant who has had diarrhea for 3 days is admitted in a lethargic state and is breathing rapidly. The parent states that the baby has been ingesting formula, although not as much as usual, and cannot understand the sudden change. What explanation should the nurse give the parent?
- A. Cellular metabolism is unstable in young children.
- B. The proportion of water in the body is less than in adults.
- C. Renal function is immature in children until they reach school age.
- D. The extracellular fluid requirement per unit of body weight is greater than in adults.
Correct answer: D
Rationale: The correct answer is D. Infants have a higher extracellular fluid requirement per unit of body weight, making them more susceptible to dehydration and electrolyte imbalances during illnesses such as diarrhea. Choice A is incorrect because cellular metabolism being unstable is not the primary explanation for the symptoms described. Choice B is incorrect as the proportion of water in the body alone does not fully explain the increased risk of dehydration in infants. Choice C is incorrect because while renal function is immature in children, it is not the most relevant factor in this scenario compared to the increased fluid requirements.
2. A premature infant with respiratory distress syndrome (RDS) receives artificial surfactant. How does the nurse explain surfactant therapy to the parents?
- A. Surfactant improves the ability of your baby’s lungs to exchange oxygen and carbon dioxide.
- B. The drug prevents your baby from requiring excessive sedation.
- C. Surfactant is used to reduce episodes of periodic apnea.
- D. Your baby needs this medication to combat a potential respiratory tract infection.
Correct answer: A
Rationale: The correct answer is A. Surfactant therapy is explained to parents as a treatment that enhances the lungs' ability to exchange oxygen and carbon dioxide. This is essential for premature infants with respiratory distress syndrome (RDS) as it helps improve their respiratory function. Choices B, C, and D are incorrect because surfactant therapy primarily focuses on addressing lung function and is not related to sedation, apnea reduction, or fighting respiratory tract infections.
3. A child has been diagnosed with classic hemophilia. A nurse teaches the child’s parents how to administer the plasma component factor VIII through a venous port. It is to be given 3 times a week. What should the nurse tell them about when to administer this therapy?
- A. Whenever a bleed is suspected
- B. In the morning on scheduled days
- C. At bedtime while the child is lying quietly in bed
- D. On a regular schedule at the parents’ convenience
Correct answer: B
Rationale: Administering factor VIII in the morning on scheduled days is the correct choice. This timing ensures that the factor VIII levels remain stable throughout the day when the child is active and at risk of bleeding. Choice A is incorrect because factor VIII should be given on a regular schedule rather than only when a bleed is suspected. Choice C is not ideal as the child may be more active during the day, increasing the risk of bleeding. Choice D is also incorrect as the administration should follow a specific schedule to maintain therapeutic levels of factor VIII in the child's system.
4. After the nurse has completed an oral examination of a healthy 2-year-old child, the parent asks when the child should first be taken to the dentist. When is the most appropriate time in the child’s life for the nurse to suggest?
- A. Before starting school
- B. Within the next few months
- C. When the first deciduous teeth are lost
- D. At the next dental check-up for a family member
Correct answer: B
Rationale: The most appropriate time for a child to first visit the dentist is within the next few months after turning two years old. This visit allows the dentist to assess the child's oral health, provide guidance on proper oral hygiene practices, and establish a positive relationship with dental care. Choice A (Before starting school) is not as specific and timely as the recommended age of 2 years. Choice C (When the first deciduous teeth are lost) is not ideal as preventive dental visits should start earlier to establish good oral health habits. Choice D (At the next dental check-up for a family member) may delay the child's first dental visit, missing the opportunity for early preventive care and guidance.
5. A healthcare professional is reviewing the clinical records of infants and children with cardiac disorders who developed heart failure. What did the healthcare professional determine is the last sign of heart failure?
- A. Tachypnea
- B. Tachycardia
- C. Peripheral edema
- D. Periorbital edema
Correct answer: C
Rationale: Peripheral edema is often the last sign of heart failure in infants and children as it indicates significant fluid retention and circulatory compromise. Tachypnea (Choice A) and tachycardia (Choice B) are early signs of heart failure due to the body's compensatory mechanisms. Periorbital edema (Choice D) can occur in heart failure but is not typically the last sign; it is more commonly associated with renal or hepatic dysfunction.
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