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 evaluating the effects of thyroid therapy used to treat a 5-month-old with hypothyroidism. Which behavior indicates that the treatment has been effective?
- A. Laughs readily, turns from back to side.
- B. Has strong Moro and tonic neck reflexes.
- C. Keeps fists clenched, opens hands when grasping an object.
- D. Can lift head, but not chest when lying on abdomen.
Correct answer: A
Rationale: In infants, laughing readily and turning from back to side are indicative of normal development. These behaviors indicate that the thyroid therapy is effective, as they suggest the baby is achieving age-appropriate milestones. A 5-month-old infant should be able to laugh readily and turn from back to side, showing progress in motor and social development. Choices B, C, and D describe behaviors that are not specific to the expected developmental milestones of a 5-month-old. Strong Moro and tonic neck reflexes, clenched fists, and limited ability to lift the chest when lying on the abdomen are not necessarily indicative of the effectiveness of thyroid therapy for hypothyroidism.
3. A 9-week-old infant is scheduled for cleft lip repair. Which information is most important for the nurse to convey to the surgeon before transporting the infant to the surgical suite?
- A. Red blood cell count of 2.3 million/mm³
- B. White blood cell count of 10,000/mm³
- C. Weight gain of 2 pounds since birth
- D. Urine specific gravity is 1.011
Correct answer: A
Rationale: The correct answer is A because a low red blood cell count may indicate anemia, which could pose risks during surgery. Anemia can affect oxygen delivery to tissues, impacting wound healing and overall surgical outcomes. The other options, such as white blood cell count, weight gain, and urine specific gravity, are less critical for immediate surgical considerations. White blood cell count is more related to infection risk postoperatively rather than immediate surgical risk. Weight gain reflects good overall growth but does not impact the immediate surgical situation. Urine specific gravity is more indicative of hydration status rather than immediate surgical risk.
4. When a mother of a 3-year-old boy gives birth to a baby girl and the boy asks why his baby sister is breastfeeding from their mother, how should the nurse respond? Select the option that is not appropriate.
- 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: B
Rationale: Choice B is not the appropriate response in this scenario. The correct answer is choice A, which normalizes the situation for the child by reminding him that his mother breastfed him too. This response helps the older brother understand that breastfeeding is a natural and common practice for newborns, including his baby sister, just as it was for him when he was a baby. Choice B, while true, does not directly address the child's question and may not provide the same level of reassurance and normalization as choice A. Choices C and D also do not directly answer the child's question and do not provide the same level of connection and understanding as choice A.
5. When screening a 5-year-old for strabismus, what action should the nurse take?
- A. Have the child identify colored patterns on polychromatic cards.
- B. Direct the child through the six cardinal positions of gaze.
- C. Inspect the child for the setting sun sign.
- D. Observe the child for blank, sunken eyes.
Correct answer: B
Rationale: When screening a 5-year-old for strabismus, directing the child through the six cardinal positions of gaze is the most appropriate action. This method helps the nurse to assess eye alignment, which is crucial in identifying any misalignment that may indicate strabismus. Choices A, C, and D are incorrect. Having the child identify colored patterns on polychromatic cards is more related to visual acuity testing rather than strabismus screening. Inspecting the child for the setting sun sign is not a standard method for strabismus screening. Observing the child for blank, sunken eyes is not specific to strabismus assessment.
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