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 healthcare provider is assessing an infant with pyloric stenosis. Which pathophysiological mechanism is the most likely consequence of this infant's clinical picture?
- A. Metabolic alkalosis.
- B. Respiratory acidosis.
- C. Metabolic acidosis.
- D. Respiratory alkalosis.
Correct answer: A
Rationale: Pyloric stenosis leads to obstruction at the outlet of the stomach, causing frequent vomiting and loss of stomach acids. This results in a loss of hydrochloric acid and hydrogen ions, leading to metabolic alkalosis due to an increase in serum bicarbonate levels. Therefore, the correct answer is metabolic alkalosis. Choice B, respiratory acidosis, is incorrect as it is not typically associated with pyloric stenosis. Choice C, metabolic acidosis, is incorrect because the loss of stomach acids in pyloric stenosis leads to metabolic alkalosis, not acidosis. Choice D, respiratory alkalosis, is also incorrect as it is not the usual consequence of pyloric stenosis.
3. What information should be reinforced with the parents of a school-aged child about Reye's syndrome?
- A. Vaccinate your child before the age of 7 against Reye's syndrome.
- B. Keep the child at home for 2 days after the symptoms appear.
- C. Avoid giving any medication containing aspirin during a viral illness.
- D. Do not provide any citrus juices during a bacterial or viral illness.
Correct answer: C
Rationale: The correct answer is C: 'Avoid giving any medication containing aspirin during a viral illness.' It is crucial to advise parents to avoid giving any medication containing aspirin during a viral illness to prevent Reye's syndrome. Reye's syndrome is a rare but serious condition linked to the use of aspirin during viral illnesses in children and teenagers. Choices A, B, and D are incorrect because vaccinating against Reye's syndrome is not applicable as there is no specific vaccine for it, keeping the child at home for 2 days after symptoms appear is not a preventive measure for Reye's syndrome, and avoiding citrus juices is not directly related to the prevention of Reye's syndrome.
4. The caregiver is caring for a 10-year-old child with a history of frequent ear infections. The parents are concerned about their child’s hearing and speech development. What is the caregiver’s best response?
- A. Let’s schedule a hearing test and refer to a speech therapist if needed
- B. Most children outgrow ear infections and speech delays
- C. There is no need to worry unless the infections persist into adolescence
- D. Your child’s hearing and speech should be normal by now
Correct answer: A
Rationale: The appropriate response for the caregiver is to address the parents' concerns by suggesting scheduling a hearing test and potentially referring the child to a speech therapist if necessary. This proactive approach can help evaluate and support the child's hearing and speech development effectively. Choice B is incorrect as assuming that most children outgrow ear infections and speech delays may overlook potential issues that need intervention. Choice C is wrong because waiting until adolescence to address concerns may lead to missed opportunities for early intervention. Choice D is incorrect as it dismisses the parents' valid concerns without offering a solution or further evaluation.
5. When a 3-year-old boy asks a nurse why his baby sister is eating his mommy’s breast, how should the nurse respond? (Select the response that does not apply.)
- A. Remind him that his mother breastfed him too
- B. Clarify that breastfeeding is the mother’s choice
- C. Reassure the older brother that it does not hurt his mother
- D. Explain that newborns get milk from their mothers in this way
Correct answer: A
Rationale: In this scenario, the nurse should avoid reminding the older sibling about his own breastfeeding experience as it does not directly address the question posed by the boy. Providing simple explanations about breastfeeding and newborn feeding patterns helps the older sibling understand the natural process without bringing up personal experiences. Choice B is correct because clarifying that breastfeeding is the mother's choice helps the older sibling understand the concept of personal decisions. Choice C is appropriate as reassuring the older brother that it does not hurt his mother addresses a common concern children may have. Choice D is also suitable as it explains in simple terms how newborns receive milk from their mothers.
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