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.”
- B. “From your description, the medications are not necessary. They should be avoided at this age.”
- C. “It is appropriate to use dosages based on age. Children typically have weights consistent for their age groups.”
- D. “The prescribed dose of the drug was based on weight, and this is a more accurate way of determining a therapeutic dose.”
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. 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.
3. The nurse is caring for an infant with suspected pyloric stenosis. Which clinical manifestation would indicate pyloric stenosis?
- A. abdominal rigidity and pain on palpation
- B. rounded abdomen and hypoactive bowel sounds
- C. visible peristalsis and weight loss
- D. distention of the lower abdomen and constipation
Correct answer: C
Rationale: Visible peristalsis and weight loss are classic clinical manifestations of pyloric stenosis. The obstruction at the pyloric sphincter causes visible peristalsis as the stomach tries to push food through the narrowed opening, leading to the appearance of waves across the abdomen. Weight loss occurs due to poor feeding and frequent vomiting associated with pyloric stenosis. Choices A, B, and D are incorrect. Abdominal rigidity and pain on palpation, rounded abdomen and hypoactive bowel sounds, as well as distention of the lower abdomen and constipation are not typically seen in pyloric stenosis.
4. A child with a diagnosis of appendicitis is scheduled for surgery. What preoperative intervention is important for the nurse to perform?
- A. Administering antibiotics
- B. Maintaining strict NPO status
- C. Encouraging fluid intake
- D. Monitoring for signs of infection
Correct answer: D
Rationale: The correct preoperative intervention for a child with appendicitis scheduled for surgery is to monitor for signs of infection. This is crucial to ensure that any potential infections are promptly identified and managed before surgery. Administering antibiotics, maintaining strict NPO status, and encouraging fluid intake are important interventions in various clinical situations but are not the priority in this scenario. Administering antibiotics may be part of the treatment plan but is typically prescribed by a physician. Maintaining NPO status is important to prevent complications related to anesthesia but may not directly address the specific needs of a child with appendicitis. Encouraging fluid intake is generally beneficial for hydration but may not be the primary concern before surgery for appendicitis.
5. Which of the following signs or symptoms is more common in children than adults following head trauma?
- A. nausea and vomiting
- B. altered mental status
- C. tachycardia and diaphoresis
- D. changes in pupillary reaction
Correct answer: A
Rationale: Nausea and vomiting are more common in children following head trauma due to their higher risk of increased intracranial pressure. Children have less space for swelling within the skull compared to adults, making them more prone to experiencing symptoms like nausea and vomiting. Altered mental status and changes in pupillary reaction can also occur in both children and adults following head trauma, but they are not specifically more common in children. Tachycardia and diaphoresis are generally signs of autonomic nervous system activation and may occur in both children and adults, but they are not typically more common in children compared to adults following head trauma.
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