HESI RN
HESI Pediatrics Practice Exam
1. A 2-year-old child with a history of frequent ear infections is brought to the clinic by the parents who are concerned about the child’s hearing. What should the nurse do first?
- A. Ask the parents about the child’s speech development
- B. Perform a hearing test
- C. Inspect the child’s ears for drainage
- D. Refer the child to an audiologist
Correct answer: C
Rationale: The most appropriate initial action for the nurse to take is to inspect the child's ears for drainage. This step can provide immediate information on the presence of infection or fluid, which could be impacting the child's hearing. By assessing for drainage, the nurse can gather valuable initial data to determine the next course of action, such as further evaluation or treatment. Asking about speech development or referring to an audiologist would be secondary steps after assessing the physical condition of the ears. Performing a hearing test would also be premature without first examining the ears for any visible issues.
2. 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.
3. 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.
4. The nurse is caring for a 3-year-old child who has been recently diagnosed with cystic fibrosis. Which discharge instruction by the nurse is most important to promote pulmonary function?
- A. Chest physiotherapy should be performed before meals and at bedtime
- B. Cough suppressants can be used up to four times a day for relief
- C. Oxygen should be given through a nasal cannula between 4-6 L/min
- D. Exercise is discouraged in order to preserve pulmonary vital capacity
Correct answer: B
Rationale: In cystic fibrosis, thick mucus obstructs the airways, making it difficult to clear from the lungs. Cough suppressants can help reduce the discomfort associated with persistent coughing, allowing the child to cough more effectively to clear the mucus, thus promoting pulmonary function. Chest physiotherapy, not exercise, helps mobilize the mucus. Oxygen therapy may be needed but is not the most important for promoting pulmonary function in this case.
5. The nurse is assessing a 6-month-old infant. Which response requires further evaluation by the nurse?
- A. Has doubled birth weight.
- B. Turns head to locate sound.
- C. Plays peek-a-boo.
- D. Demonstrates startle reflex.
Correct answer: D
Rationale: At 6 months old, the startle reflex should diminish, so its persistence warrants further evaluation by the nurse. Choices A, B, and C are appropriate developmental milestones for a 6-month-old infant. By 6 months, infants typically double their birth weight, exhibit localization of sound by turning their head, and engage in interactive play like peek-a-boo.
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