HESI RN
HESI Practice Test Pediatrics
1. What advice should be provided by the practical nurse to the mother of a school-age child with acute diarrhea and mild dehydration who is occasionally vomiting despite being given an oral rehydration solution (ORS)?
- A. Continue to give ORS frequently in small amounts.
- B. Alternate between ORS and carbonated beverages.
- C. Take the child to the hospital for intravenous fluids.
- D. Place the child NPO for the next eight to nine hours.
Correct answer: A
Rationale: The practical nurse should advise the mother to continue providing the oral rehydration solution (ORS) frequently in small amounts. It is essential to continue ORS administration to prevent dehydration, even if the child is occasionally vomiting. Small, frequent amounts of ORS help maintain hydration levels in children with acute diarrhea and mild dehydration.
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. What intervention should the nurse implement first for a male toddler brought to the emergency center approximately three hours after swallowing tablets from his grandmother's bottle of digoxin (Lanoxin)?
- A. Administer activated charcoal
- B. Prepare gastric lavage
- C. Obtain a 12-lead electrocardiogram
- D. Give IV digoxin immune fab (Digibind)
Correct answer: A
Rationale: Administering activated charcoal is the priority intervention as it binds with digoxin, preventing further absorption in the gastrointestinal tract. This helps reduce the amount of digoxin available for systemic circulation and minimizes its toxic effects. Gastric lavage is no longer recommended due to potential complications and lack of evidence of efficacy. Obtaining an electrocardiogram may help assess the effects of digoxin toxicity, but it is not the initial priority. IV digoxin immune fab (Digibind) is used in severe cases of digoxin toxicity but is not the first-line intervention.
4. While assessing the vital signs of a 10-year-old who underwent a tonsillectomy this morning, the nurse observes the child swallowing every 2-3 minutes. Which assessment should the nurse implement?
- A. Inspect the posterior oropharynx
- B. Assess for teeth clenching or grinding
- C. Touch the tonsillar pillars to stimulate the gag reflex
- D. Ask the child to speak to evaluate a change in voice tone
Correct answer: A
Rationale: Frequent swallowing post-tonsillectomy may indicate bleeding. Inspecting the posterior oropharynx is essential to assess for any signs of bleeding, such as fresh blood or clots, which may necessitate immediate intervention. Option B is incorrect as teeth clenching or grinding is not directly related to the observation of frequent swallowing in this scenario. Option C is incorrect because stimulating the gag reflex is not necessary at this point and may be uncomfortable for the child. Option D is incorrect as evaluating a change in voice tone is not relevant to the situation of observing frequent swallowing.
5. The nurse is caring for a 4-year-old child who is hospitalized with pneumonia. The child is receiving IV antibiotics and oxygen therapy. The nurse notes that the child’s respiratory rate is 40 breaths per minute, and the oxygen saturation is 92%. What is the nurse’s priority action?
- A. Increase the child’s oxygen flow rate
- B. Notify the healthcare provider
- C. Encourage the child to take deep breaths
- D. Auscultate the child’s lung sounds
Correct answer: D
Rationale: In this scenario, the child is hospitalized with pneumonia, receiving IV antibiotics and oxygen therapy. With a high respiratory rate and decreased oxygen saturation, auscultating the child’s lung sounds is the priority action. This assessment can provide crucial information about the child’s respiratory status, such as the presence of adventitious sounds or decreased air entry, which can guide further interventions and help in evaluating the effectiveness of the current treatments. Increasing the oxygen flow rate may not address the underlying issue causing the decreased oxygen saturation. Notifying the healthcare provider can be necessary but auscultating lung sounds should be done first to gather more information. Encouraging the child to take deep breaths is important for respiratory function but should not be the immediate priority in this situation.
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