HESI LPN
Pediatric HESI Practice Questions
1. An infant is admitted to the neonatal intensive care unit (NICU) with exstrophy of the bladder. What covering should the nurse use to protect the exposed area?
- A. Loose diaper
- B. Dry gauze dressing
- C. Moist sterile dressing
- D. Petroleum jelly gauze pad
Correct answer: C
Rationale: A moist sterile dressing should be used to protect the exposed bladder tissue from infection and injury. Exstrophy of the bladder requires careful management to prevent complications such as infection. A loose diaper (Choice A) may not provide adequate protection or prevent infection. Dry gauze dressing (Choice B) may not be ideal as it could adhere to the exposed area and cause trauma upon removal. Petroleum jelly gauze pad (Choice D) may not be suitable as it can trap moisture and increase the risk of infection.
2. A child has been admitted to the pediatric unit with a severe asthma attack. What type of acid-base imbalance should the nurse expect the child to develop?
- A. metabolic alkalosis due to insufficient production of acid metabolites
- B. respiratory alkalosis due to depressed respirations and retention of carbon dioxide
- C. respiratory acidosis due to impaired respirations and increased formation of carbonic acid
- D. metabolic acidosis due to the kidneys' inability to compensate for decreased carbonic acid formation
Correct answer: C
Rationale: In a severe asthma attack, the child is likely to develop respiratory acidosis. This occurs due to impaired respirations, leading to the retention of carbon dioxide and the formation of carbonic acid. Choice A is incorrect as metabolic alkalosis is not expected in this situation. Choice B is incorrect as respiratory alkalosis does not align with the scenario of impaired respirations in severe asthma attacks. Choice D is also incorrect as it describes metabolic acidosis, which is not typically associated with severe asthma attacks.
3. A health care provider orders a tap water enema for a 6-month-old infant with suspected Hirschsprung disease. What rationale causes the nurse to question the order?
- A. The result could lead to loss of necessary nutrients.
- B. It could cause a fluid and electrolyte imbalance.
- C. It could increase the fear of intrusive procedures.
- D. The result could cause shock from a sudden drop in temperature.
Correct answer: B
Rationale: The correct answer is B. Tap water enemas can cause significant fluid and electrolyte imbalances, particularly in infants, making them unsafe for this age group. Choice A is incorrect because tap water enemas do not directly lead to loss of necessary nutrients. Choice C is incorrect as it focuses on emotional impact rather than physiological risks. Choice D is incorrect as shock from a sudden drop in temperature is not a common consequence of a tap water enema in this scenario.
4. An order is written for an isotonic enema for a 2-year-old child. What is the maximum amount of fluid the nurse should administer without a specific order from the health care provider?
- A. 100 to 150 mL
- B. 155 to 250 mL
- C. 255 to 360 mL
- D. 365 to 500 mL
Correct answer: B
Rationale: For a 2-year-old child, the maximum recommended amount of fluid for an isotonic enema is between 155 to 250 mL to prevent overdistension and potential harm. Choice A (100 to 150 mL) is too low and may not be effective in achieving the desired outcome. Choices C (255 to 360 mL) and D (365 to 500 mL) exceed the safe range for a 2-year-old child and can lead to overdistension, electrolyte imbalance, or other complications. Therefore, the correct answer is B.
5. 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.
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