HESI LPN
Pediatric HESI Practice Questions
1. A parent calls the outpatient clinic requesting information about the appropriate dose of acetaminophen for a 16-month-old child who has signs of an upper respiratory tract infection and fever. The directions on the bottle of acetaminophen elixir are 120 mg every 4 hours when needed. At the toddler’s 15-month visit, the health care provider prescribed 150 mg. What is the nurse’s best response to the parent?
- A. “The dose is close enough, and it doesn’t really matter which one is given.â€
- B. “From your description, the medications are not necessary. They should be avoided at this age.â€
- C. “It is appropriate to use dosages based on age. Children typically have weights consistent for their age groups.â€
- D. “The prescribed dose of the drug was based on weight, and this is a more accurate way of determining a therapeutic dose.â€
Correct answer: D
Rationale: The most accurate way to determine a therapeutic dose for children is based on their weight rather than age. Weight-based dosing helps ensure that the child receives the appropriate amount of medication for their body size, which is crucial for safety and effectiveness. Age-based dosing can lead to underdosing or overdosing, as children of the same age can have significantly different weights. Choice A is incorrect because even small variations in dosages can have significant effects on a child's health. Choice B is incorrect as acetaminophen can be appropriate when used correctly for fever management in children. Choice C is incorrect as children's weights can vary greatly within the same age group, making weight-based dosing more precise and individualized.
2. When a child with a diagnosis of asthma is prescribed a peak flow meter, what should the nurse teach the child and parents about using this device?
- A. Use the device before taking medication
- B. Use the device during asthma attacks
- C. Record the best of three attempts
- D. Use the device after eating
Correct answer: C
Rationale: The correct answer is to record the best of three attempts when using a peak flow meter. This method provides a more accurate measure of peak expiratory flow. Choice A is incorrect because using the device before taking medication may not reflect the actual peak flow, as medication can affect lung function. Choice B is incorrect as using the device during asthma attacks may not be feasible or safe, as the focus during an attack should be on managing symptoms rather than measuring peak flow. Choice D is incorrect because using the device after eating may not provide an accurate measurement of peak flow, as digestion can affect lung function temporarily.
3. A nurse is assessing a 3-month-old infant with suspected pyloric stenosis. What clinical manifestation is the nurse likely to observe?
- A. Projectile vomiting
- B. Diarrhea
- C. Constipation
- D. Abdominal distension
Correct answer: A
Rationale: Projectile vomiting is the hallmark clinical manifestation of pyloric stenosis in infants. In pyloric stenosis, the muscle surrounding the opening between the stomach and the small intestine thickens, leading to obstruction. This obstruction causes forceful, projectile vomiting, which is typically non-bilious (does not contain bile) and occurs after feedings. Choices B, C, and D are incorrect because diarrhea, constipation, and abdominal distension are not typical symptoms of pyloric stenosis.
4. During a nap, a 3-year-old hospitalized child wets the bed. How should the nurse respond?
- A. Ask the child to help with remaking the bed.
- B. Put clean sheets on the bed over a rubber sheet.
- C. Change the child’s clothes without discussing the incident.
- D. Explain that children should call the nurse when they need to go to the bathroom.
Correct answer: C
Rationale: When a 3-year-old hospitalized child wets the bed during a nap, the nurse should respond by changing the child's clothes without discussing the incident. This approach helps to maintain the child's dignity, avoid embarrassment, and reduce anxiety about bedwetting. Asking the child to help remake the bed (Choice A) may not be developmentally appropriate for a 3-year-old and could potentially lead to further distress. Putting clean sheets on the bed over a rubber sheet (Choice B) addresses the aftermath but does not directly address the child's needs and feelings. Explaining that children should call the nurse when they need to go to the bathroom (Choice D) may not be effective in this situation as the child may not have control over bedwetting during sleep.
5. A nurse is caring for an infant with phenylketonuria (PKU). What diet should the nurse anticipate will be ordered by the healthcare provider?
- A. Fat-free
- B. Protein-enriched
- C. Phenylalanine-free
- D. Low-phenylalanine
Correct answer: D
Rationale: A low-phenylalanine diet is necessary for infants with PKU because it helps prevent the accumulation of phenylalanine, which can result in brain damage. Fat-free (Choice A) and protein-enriched (Choice B) diets are not specifically indicated for PKU. While phenylalanine-free (Choice C) may seem logical, complete elimination of phenylalanine is not practical or safe as it is an essential amino acid. Therefore, the correct choice is a low-phenylalanine diet, which restricts phenylalanine intake to a safe level.
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