HESI RN
HESI Pediatric Practice Exam
1. The nurse is measuring the frontal occipital circumference (FOC) of a 3-month-old infant and notes that the FOC has increased by 5 inches since birth, and the child's head appears large in relation to body size. Which action is most important for the nurse to take next?
- A. Measure the infant's head-to-toe length.
- B. Palpate the anterior fontanel for tension and bulging.
- C. Observe the infant for sunken eyes.
- D. Plot the measurement on the infant's growth chart.
Correct answer: B
Rationale: Palpating the anterior fontanel for tension and bulging is crucial in assessing for increased intracranial pressure. In this scenario, the infant's large head size and rapid increase in the frontal occipital circumference raise concerns for potential issues such as hydrocephalus. Measuring the head-to-toe length (Choice A) is not the priority when assessing for increased intracranial pressure. Observing for sunken eyes (Choice C) is more indicative of dehydration rather than increased intracranial pressure. While plotting the measurement on the infant's growth chart (Choice D) is important for tracking growth, it does not address the immediate concern of assessing for increased intracranial pressure.
2. The healthcare provider is preparing to administer digoxin (Lanoxin) to a 6-month-old infant with heart failure. The healthcare provider notes that the infant’s heart rate is 90 beats per minute. What should the healthcare provider do next?
- A. Administer the medication as prescribed
- B. Hold the medication and notify the healthcare provider
- C. Reassess the heart rate in 30 minutes
- D. Administer half the prescribed dose
Correct answer: B
Rationale: In this scenario, the correct action is to hold the medication and notify the healthcare provider. Digoxin should be withheld if the infant’s heart rate is below 100 beats per minute. Administering digoxin in this situation can further slow down the heart rate in infants with heart failure, leading to potential adverse effects. Reassessing the heart rate in 30 minutes is not the best immediate action to take, as prompt notification and withholding of the medication are crucial. Administering the medication as prescribed or giving half the dose can exacerbate the situation by potentially further lowering the heart rate.
3. The healthcare provider is preparing to administer a vaccine to a 5-year-old child. The child is visibly anxious and asks if the shot will hurt. What is the healthcare provider’s best response?
- A. It might hurt a little, but it will be over quickly
- B. It won't hurt at all, don't worry
- C. You're a big kid now, and big kids don't cry
- D. If you don't think about it, it won't hurt
Correct answer: A
Rationale: When a child expresses fear or anxiety about receiving a vaccination, it is essential for the healthcare provider to provide honest and reassuring information. Choice A acknowledges the potential for some discomfort but also reassures the child that it will be over quickly. This response validates the child's feelings while also preparing them for the procedure. Choices B, C, and D either provide false reassurance, dismiss the child's feelings, or suggest avoidance, which are not appropriate responses in this situation.
4. The nurse is conducting an admission assessment of an 11-month-old infant with CHF who is scheduled for repair of restenosis of coarctation 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 findings are consistent with coarctation of the aorta, where narrowing of the aorta leads to decreased blood flow to the lower extremities. This results in higher blood pressure in the arms compared to the lower extremities, pounding brachial pulses, and slightly palpable femoral pulses. Choices A, C, and D are incorrect because they do not align with the pathophysiological mechanisms of coarctation of the aorta, which specifically involves narrowing of the aortic lumen reducing blood flow to the lower extremities.
5. What is the priority action for a 2-year-old child with croup presenting with a barking cough and stridor?
- A. Administer a corticosteroid
- B. Obtain a throat culture
- C. Administer nebulized epinephrine
- D. Place the child in an upright position
Correct answer: C
Rationale: The priority action for a 2-year-old child with croup and stridor is to administer nebulized epinephrine. Nebulized epinephrine helps reduce airway swelling, alleviate symptoms, and improve breathing by causing vasoconstriction and reducing upper airway edema. Administering a corticosteroid may be done but is not the priority in this scenario. Obtaining a throat culture is not necessary for the immediate management of croup. Placing the child in an upright position can aid in breathing but is not the priority action when the child is presenting with stridor.
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