HESI LPN
Pediatric Practice Exam HESI
1. 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.
2. The nurse is assessing a 3-year-old boy whose parents brought him to the clinic when they noticed that the right side of his abdomen was swollen. What finding would suggest this child has a neuroblastoma?
- A. The child has a maculopapular rash on his palms.
- B. The parents report that their son is vomiting and not eating well.
- C. The parents report that their son is irritable and not gaining weight.
- D. Auscultation reveals wheezing with diminished lung sounds.
Correct answer: B
Rationale: Vomiting and poor appetite are common symptoms of neuroblastoma, a malignancy that arises from neural crest cells in the adrenal glands or sympathetic nervous system. This tumor can cause abdominal swelling due to its location and size, leading to symptoms like vomiting and decreased appetite. The presence of a maculopapular rash on the palms (Choice A) is not a typical finding associated with neuroblastoma. Irritability and failure to thrive (Choice C) are nonspecific symptoms that can be seen in various conditions but are not specifically indicative of neuroblastoma. Auscultation revealing wheezing with diminished lung sounds (Choice D) may suggest respiratory conditions rather than neuroblastoma.
3. A child with a diagnosis of gastroenteritis is admitted to the hospital. What is the priority nursing intervention?
- A. Monitoring fluid and electrolyte balance
- B. Encouraging regular exercise
- C. Administering antipyretics
- D. Administering antibiotics
Correct answer: A
Rationale: The correct answer is monitoring fluid and electrolyte balance. Gastroenteritis is characterized by inflammation of the gastrointestinal tract, leading to fluid loss. Maintaining fluid and electrolyte balance is essential in managing gastroenteritis to prevent dehydration and electrolyte imbalances. Encouraging regular exercise (Choice B) is not a priority in the acute phase of gastroenteritis when the focus is on rehydration and symptom management. Administering antipyretics (Choice C) may be considered for fever management but is not the priority over monitoring fluid and electrolyte balance. Administering antibiotics (Choice D) is not routinely indicated for viral gastroenteritis, which is a common cause of the condition in children.
4. A nurse is caring for an infant with phenylketonuria (PKU). What diet should the nurse anticipate will be ordered by the health care provider?
- A. Fat-free
- B. Protein-enriched
- C. Phenylalanine-free
- D. Low-phenylalanine
Correct answer: D
Rationale: A low-phenylalanine diet is required for infants with PKU to prevent the buildup of phenylalanine, which can lead to brain damage.
5. After corrective surgery for hypertrophic pyloric stenosis (HPS) is completed, and the infant is returned to the pediatric unit with an IV infusion in place, what is the priority nursing action?
- A. Apply adequate restraints.
- B. Administer a mild sedative.
- C. Assess the IV site for infiltration.
- D. Attach the nasogastric tube to wall suction.
Correct answer: C
Rationale: The priority nursing action after corrective surgery for hypertrophic pyloric stenosis (HPS) is to assess the IV site for infiltration. This is crucial as it ensures proper fluid administration and prevents complications such as phlebitis or infiltration-related tissue damage. Applying restraints (Choice A) would not be appropriate in this situation as it is not related to the immediate post-operative care of an infant with an IV infusion. Administering a mild sedative (Choice B) is not indicated as the primary concern post-surgery is monitoring the IV site and the infant's response to the surgery. Attaching the nasogastric tube to wall suction (Choice D) is not the priority at this time, as assessing the IV site takes precedence to prevent potential complications.
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