HESI RN
HESI Pediatric Practice Exam
1. A 3-year-old with HIV infection is staying with a foster family who is caring for 3 other foster children in their home. When one of the children acquires pertussis, the foster mother calls the clinic and asks the nurse what she should do. Which action should the nurse take first?
- A. Remove the child who has HIV from the foster home.
- B. Report the exposure of the child with HIV to the health department.
- C. Place the child who has HIV in reverse isolation.
- D. Review the immunization documentation of the child who has HIV.
Correct answer: D
Rationale: The priority action for the nurse is to review the immunization documentation of the child with HIV to ensure they have received the necessary vaccines. This step is crucial in protecting the child's health and preventing further complications from vaccine-preventable diseases like pertussis. By reviewing the immunization documentation first, the nurse can determine the child's protection against pertussis and other infectious diseases. Removing the child from the foster home (Choice A) may not be necessary if the child is adequately vaccinated. Reporting the exposure to the health department (Choice B) and placing the child in reverse isolation (Choice C) are important steps but reviewing the immunization status takes precedence to assess the child's protection and guide further actions.
2. A 4-month-old girl is brought to the clinic by her mother because she has had a cold for 2 to 3 days and woke up this morning with a hacking cough and difficulty breathing. Which additional assessment finding should alert the nurse that the child is in acute respiratory distress?
- A. Bilateral bronchial breath sounds.
- B. Diaphragmatic respiration.
- C. A resting respiratory rate of 35 breaths per minute.
- D. Flaring of the nares.
Correct answer: D
Rationale: Flaring of the nares is a clinical sign of acute respiratory distress in infants. It indicates an increased effort to breathe and is a crucial finding that requires immediate attention, as it signifies the child is having difficulty breathing and may be in respiratory distress. Choices A, B, and C are incorrect. Bilateral bronchial breath sounds may be present in conditions like pneumonia but do not specifically indicate acute respiratory distress. Diaphragmatic respiration is a normal breathing pattern and not a sign of distress. A resting respiratory rate of 35 breaths per minute in a 4-month-old infant is within the expected range, so it does not necessarily indicate acute respiratory distress.
3. 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.
4. A child receives a prescription for amantadine 42 mg PO BID. Amantadine is available as a 50 mg/5 mL syrup. Using a supplied calibrated measuring device, how many mL should be administered per dose? (Round to the nearest tenth.)
- A. 4.2 mL
- B. 5 mL
- C. 3.6 mL
- D. 4 mL
Correct answer: A
Rationale: To calculate the mL per dose, divide the prescribed dose (42 mg) by the concentration of the syrup (50 mg/5 mL) and then convert the result to mL. 42 mg / 50 mg = 0.84. To find the amount in mL, multiply 0.84 by 5 mL, which equals 4.2 mL. Therefore, 4.2 mL should be administered per dose.
5. A male infant with bronchiolitis is brought to the clinic by his mother. The infant is congested and febrile with a capillary refill of 2 seconds. Which information should the nurse discuss with the mother?
- A. Encourage the infant to play
- B. Limit the amount of oral intake
- C. Keep the infant isolated from others
- D. Place the infant on their back for naps
Correct answer: C
Rationale: Bronchiolitis is a highly contagious respiratory infection commonly caused by viruses. Isolating the infant from others is crucial to prevent the spread of the infection to other vulnerable individuals, especially those with weakened immune systems. Encouraging play may not be appropriate as the infant is sick and needs rest. Limiting oral intake might be necessary if the infant is having difficulty swallowing due to respiratory distress. Placing the infant on their back for naps is a safe sleep practice but not the priority in this situation where preventing transmission of the infection is crucial.
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