HESI LPN
HESI Pediatrics Quizlet
1. How is the diagnosis of Hirschsprung disease confirmed in a 1-month-old infant admitted to the pediatric unit?
- A. Colonoscopy
- B. Rectal biopsy
- C. Multiple saline enemas
- D. Fiberoptic nasoenteric tube
Correct answer: B
Rationale: Rectal biopsy is the definitive diagnostic procedure for Hirschsprung disease in infants. It confirms the absence of ganglion cells in the affected bowel segment, which is characteristic of Hirschsprung disease. Colonoscopy (Choice A) is not typically used for confirmation as it may not provide a definitive result. Multiple saline enemas (Choice C) are utilized in the treatment of meconium ileus, a complication of cystic fibrosis, and not in the diagnosis of Hirschsprung disease. Fiberoptic nasoenteric tube (Choice D) is not a diagnostic tool for Hirschsprung disease; it is commonly used for gastrointestinal decompression or feeding purposes but does not confirm the diagnosis.
2. What should be taught to the child and parents about using a peak flow meter for a child diagnosed with asthma?
- 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.' This method provides an accurate measure of peak expiratory flow using a peak flow meter. By taking the best of three attempts, the child and parents can obtain a more reliable assessment of the child's lung function. Choices A, B, and D are incorrect because using the device before taking medication, during asthma attacks, or after eating does not ensure an accurate measurement of peak flow, which is essential for managing asthma effectively. Monitoring peak flow regularly and accurately can help in adjusting asthma treatment plans and assessing response to medications.
3. What behavior is essential for preventing in a child postoperatively after undergoing heart surgery to repair defects associated with tetralogy of Fallot?
- A. Crying
- B. Coughing
- C. Straining at stool
- D. Unnecessary movement
Correct answer: C
Rationale: Preventing straining at stool is crucial postoperatively after heart surgery for tetralogy of Fallot to avoid increasing intrathoracic pressure and placing stress on the surgical site. This can help prevent complications and promote faster healing. While crying, coughing, and unnecessary movement are common postoperative behaviors, they are not specifically linked to worsening outcomes in this context. Straining at stool is particularly emphasized due to its potential to impact the surgical site and overall recovery process.
4. A nurse is teaching the parents of a child with a diagnosis of epilepsy about seizure precautions. What should the nurse include in the teaching?
- A. Keep a diary of seizure activity
- B. Administer antiepileptic medication only when a seizure occurs
- C. Restrict the child's activities to prevent seizures
- D. Teach seizure first aid to family members
Correct answer: D
Rationale: Teaching seizure first aid to family members is essential as it empowers them to respond effectively during a seizure. Keeping a diary of seizure activity is important for tracking patterns and triggers but is not directly related to immediate safety. Administering antiepileptic medication only when a seizure occurs is not recommended as medications should be administered as prescribed by healthcare providers. Restricting the child's activities to prevent seizures is not appropriate as children with epilepsy should be encouraged to lead active lives while taking necessary precautions.
5. What should be the priority action when caring for a child with acute laryngotracheobronchitis?
- A. Initiate measures to reduce fever.
- B. Ensure delivery of humidified oxygen.
- C. Provide support to reduce apprehension.
- D. Continually assess the respiratory status.
Correct answer: D
Rationale: When caring for a child with acute laryngotracheobronchitis, the priority action should be to continually assess the respiratory status. This is crucial to detect early signs of respiratory distress, such as worsening stridor or increased work of breathing. Prompt intervention can prevent further deterioration of the child's condition. Initiating measures to reduce fever (Choice A) may be necessary but is not the priority in this situation. Ensuring delivery of humidified oxygen (Choice B) is important for maintaining oxygenation but should follow the assessment of respiratory status. Providing support to reduce apprehension (Choice C) is also important for the child's comfort but is not the priority over assessing and managing respiratory distress.
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