HESI LPN
Pediatric Practice Exam HESI
1. When preparing a 2-year-old child for surgery, what preoperative teaching should be provided to help them understand the procedure?
- A. Explaining the procedure in simple terms
- B. Using a doll to demonstrate the procedure
- C. Showing pictures of the hospital environment
- D. Allowing the child to play with medical equipment
Correct answer: B
Rationale: The correct preoperative teaching for a 2-year-old child undergoing surgery involves using a doll to demonstrate the procedure. This method helps the child understand what to expect in a non-threatening and visual way, making the experience less intimidating. Explaining the procedure in simple terms (Choice A) may not effectively convey the details to a young child. Showing pictures of the hospital environment (Choice C) may not directly address the surgical procedure itself. Allowing the child to play with medical equipment (Choice D) can be unsafe and may not effectively prepare the child for the surgery.
2. A parent brings a 2-month-old infant with Down syndrome to the pediatric clinic for a physical and administration of immunizations. Which clinical finding should alert the nurse to perform a further assessment?
- A. Flat occiput
- B. Small, low-set ears
- C. Circumoral cyanosis
- D. Protruding furrowed tongue
Correct answer: C
Rationale: Circumoral cyanosis should alert the nurse to perform further assessment in a 2-month-old infant with Down syndrome. This finding may indicate cardiac or respiratory issues, such as inadequate oxygenation. Small, low-set ears and a protruding furrowed tongue are common physical characteristics associated with Down syndrome and may not necessarily warrant immediate further assessment. A flat occiput is a normal variation in infant anatomy and is not typically a cause for immediate concern in this context.
3. The instructor is educating a group of students about myelination in a child. Which statement by the students indicates that the teaching was successful?
- A. Myelination continues into adolescence.
- B. The process occurs in a head-to-toe fashion.
- C. Myelination speeds up nerve impulses.
- D. Myelination increases the specificity and efficiency of nerve impulses.
Correct answer: B
Rationale: The correct answer is B. Myelination occurs in a cephalocaudal (head-to-toe) pattern, improving nerve function progressively. Choice A is incorrect because myelination continues beyond 4 years of age and into adolescence. Choice C is incorrect as myelination speeds up nerve impulses rather than slowing them down. Choice D is incorrect because myelination increases the specificity and efficiency of nerve impulses, making them more focused and precise.
4. A 1-week-old infant has been in the pediatric unit for 18 hours following placement of a spica cast. The nurse observes a respiratory rate of fewer than 24 breaths/min. No other changes are noted. Because the infant is apparently well, the nurse does not report or document the slow respiratory rate. Several hours later, the infant experiences severe respiratory distress and emergency care is necessary. What should be considered if legal action is taken?
- A. Most infants have slow respirations when they are uncomfortable.
- B. The respirations of young infants are irregular, so a drop in rate is unimportant.
- C. Vital signs that are outside the expected parameters are significant and should be documented.
- D. The respiratory tract of young infants is underdeveloped, and their respiratory rate is not significant.
Correct answer: C
Rationale: In this scenario, the correct answer is C. Any vital signs outside the expected range in an infant should be documented and reported, as they may indicate a developing condition that requires prompt attention. Choice A is incorrect because slow respirations in infants should not be dismissed without assessment and documentation. Choice B is incorrect because a drop in respiratory rate in this case was significant and should have been documented. Choice D is incorrect because even though infants have underdeveloped respiratory tracts, any abnormal respiratory rate should be taken seriously and documented for monitoring and intervention if necessary.
5. 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.
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