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 nurse is caring for a 4-year-old child who has been diagnosed with measles. Which intervention should the nurse implement to prevent the spread of infection?
- A. Administer antipyretics as prescribed
- B. Place the child in airborne isolation
- C. Encourage fluid intake
- D. Teach the parents about hand hygiene
Correct answer: B
Rationale: Measles is an airborne infection, so placing the child in airborne isolation is crucial to prevent the spread of the virus to others. Airborne isolation precautions help contain infectious respiratory droplets and reduce the risk of transmission to healthcare workers, other patients, and visitors. Administering antipyretics, encouraging fluid intake, and teaching parents about hand hygiene are important aspects of care but do not directly address the prevention of the spread of measles, which requires airborne precautions.
3. The practical nurse is caring for a child who was admitted for treatment of seizures. Which intervention should the nurse implement to help prevent injury from a seizure?
- A. Have a padded tongue depressor at the bedside.
- B. Keep the side rails padded and in an upright position.
- C. Place a padded helmet on the child’s head.
- D. Restrain the child during the seizure activity.
Correct answer: B
Rationale: The correct intervention to help prevent injury during a seizure is to keep the side rails padded and in an upright position. This measure helps to ensure the child's safety by preventing falls or accidental injuries. Using a padded tongue depressor or restraining the child can potentially cause harm and are not recommended. Placing a padded helmet is not a standard intervention for seizure safety in this scenario.
4. The nurse is conducting an admission assessment of an 11-month-old infant with CHF who is scheduled for repair of restenosis of coarction of the aorta that was repaired 4 days after birth. Findings include blood pressure higher in the arms than the lower extremities, pounding brachial pulses, and slightly palpable femoral pulses. What pathophysiologic mechanisms support these findings?
- A. The aortic semilunar valve obstructs blood flow into the systemic circulation
- B. The lumen of the aorta reduces the volume of the blood flow to the lower extremities
- C. The pulmonic valve prevents adequate blood volume into the pulmonary circulation
- D. An opening in the atrial septum causes a murmur due to a turbulent left-to-right shunt
Correct answer: B
Rationale: The correct answer is B. Coarctation of the aorta causes narrowing of the aorta, reducing blood flow to the lower extremities. This narrowing results in higher blood pressure in the arms compared to the lower extremities, along with stronger brachial pulses and slightly palpable femoral pulses. Choices A, C, and D are incorrect because they do not align with the pathophysiological mechanism of coarctation of the aorta, which specifically leads to reduced blood flow to the lower extremities.
5. A mother brings her 3-month-old infant to the clinic because the baby does not sleep through the night. Which finding is most significant in planning care for this family?
- A. The mother is a single parent and lives with her parents
- B. The mother states the baby is irritable during feedings
- C. The infant's formula has been changed twice
- D. The diaper area shows severe skin breakdown
Correct answer: D
Rationale: Severe skin breakdown in the diaper area is significant as it indicates a potential severe issue that needs immediate attention to prevent further complications. Skin breakdown can lead to infections and discomfort for the infant, making it a priority in planning care for this family. The other findings, such as the mother's living situation, baby's irritability during feedings, or formula changes, are important but do not pose immediate risks to the infant's health compared to severe skin breakdown.
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