HESI RN
HESI Pediatric Practice Exam
1. An infant with tetralogy of Fallot becomes acutely cyanotic and hyperpneic. Which action should the nurse implement first?
- A. Administer morphine sulfate.
- B. Start IV fluids.
- C. Place the infant in a knee-chest position.
- D. Provide 100% oxygen by face mask.
Correct answer: C
Rationale: In a situation where an infant with tetralogy of Fallot is acutely cyanotic and hyperpneic, the priority action should be to place the infant in a knee-chest position. This position helps increase systemic vascular resistance, improving pulmonary blood flow and subsequently ameliorating the cyanosis and hyperpnea. It is a non-invasive and effective intervention that can be promptly implemented by the nurse to address the immediate respiratory distress. Administering morphine sulfate (Choice A) is not the priority in this case as it may cause further respiratory depression. Starting IV fluids (Choice B) may not address the immediate cyanosis and hyperpnea. Providing 100% oxygen by face mask (Choice D) can help with oxygenation but may not be as effective as placing the infant in a knee-chest position to improve blood flow dynamics.
2. The caregiver is caring for a 3-year-old child with a diagnosis of gastroenteritis. The child has had several episodes of vomiting and diarrhea over the past 24 hours. What is the caregiver's priority assessment?
- A. Monitor the child's weight
- B. Assess the child's hydration status
- C. Evaluate the child's nutritional intake
- D. Check the child's temperature
Correct answer: B
Rationale: The correct answer is B: Assess the child's hydration status. In children with gastroenteritis, assessing hydration status is crucial as they are at risk of dehydration due to vomiting and diarrhea. Monitoring hydration helps prevent complications and guides appropriate interventions to maintain the child's fluid balance. Monitoring the child's weight (Choice A) is not the priority in this situation compared to assessing hydration status. Evaluating nutritional intake (Choice C) is important but not the priority when the child is at risk of dehydration. Checking the child's temperature (Choice D) is relevant but not the priority over assessing hydration status in a child with gastroenteritis.
3. A 2-year-old is admitted to the hospital with possible encephalitis, and a lumbar puncture is scheduled. Which information should the nurse provide this child concerning the procedure?
- A. Describe the side-lying, knees to chest position that must be assumed during the procedure.
- B. Tell the child to expect loud clicking noises during the procedure that may be slightly annoying.
- C. Reassure the child that there will be no restrictions on activity after the procedure is completed.
- D. Explain that fluids cannot be taken for 8 hours before the procedure and for 4 hours after the procedure.
Correct answer: A
Rationale: The correct answer is A. Describing the side-lying, knees to chest position that must be assumed during the lumbar puncture procedure is essential as it helps the child understand what to expect, promotes cooperation, and reduces anxiety. This position is necessary for the procedure to be performed safely and effectively. Choice B is incorrect because mentioning loud clicking noises may increase the child's anxiety. Choice C is incorrect because there may be restrictions on activity after the procedure, depending on individual cases. Choice D is also incorrect as it provides information about fluid intake restrictions that are not directly related to the procedure itself.
4. A mother brings her 3-week-old infant to the clinic because the baby vomits after eating and always seems hungry. Further assessment indicates that the infant's vomiting is projectile, and the child seems listless. Which additional assessment finding indicates the possibility of a life-threatening complication?
- A. Irregular palpable pulse
- B. Hyperactive bowel sounds
- C. Underweight for age
- D. Crying without tears
Correct answer: D
Rationale: Crying without tears is a sign of severe dehydration, which is a potentially life-threatening complication in infants with projectile vomiting. Dehydration can rapidly progress in infants, leading to serious consequences if not promptly addressed. The combination of projectile vomiting, listlessness, and absence of tears when crying should raise concerns about severe dehydration and the need for urgent intervention to prevent further complications.
5. A mother brings her school-aged daughter to the pediatric clinic for evaluation of her anti-epileptic medication regimen. What information should the nurse provide to the mother?
- A. The medication dose will be tapered over a period of 2 weeks when being discontinued
- B. If seizures return, multiple medications will be prescribed for another 2 years
- C. A dose of valproic acid (Depakote) should be available in the event of status epilepticus
- D. Phenytoin (Dilantin) and phenobarbital (Luminal) should be taken for life
Correct answer: A
Rationale: Antiepileptic drugs should not be abruptly stopped as it may lead to seizure recurrence. Tapering the medication over a period of 2 weeks helps to prevent withdrawal effects and minimize the risk of seizures. Choice B is incorrect because starting multiple medications for seizure recurrence is not the first-line approach. Choice C is incorrect because valproic acid is not the first-line medication given in the event of status epilepticus. Choice D is incorrect because antiepileptic medications are usually evaluated over time and adjusted based on the individual's response; it is not always necessary to take them for life.
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