HESI RN
HESI Practice Test Pediatrics
1. A 2-year-old child with respiratory syncytial virus (RSV) is being treated in the hospital. What should the healthcare provider monitor for in this child?
- A. Increased urine output.
- B. Decreased respiratory rate.
- C. Labored breathing.
- D. Improved appetite.
Correct answer: C
Rationale: Labored breathing is a critical sign of worsening respiratory distress in children with RSV. It indicates that the child's condition may be deteriorating, requiring prompt intervention to ensure adequate oxygenation and prevent respiratory failure. Monitoring for labored breathing allows healthcare providers to promptly assess and manage the child's respiratory status, potentially preventing further complications associated with RSV infection.
2. What is the recommended analgesia for preparing a school-age child for a lumbar puncture (LP)?
- A. Ondansetron (Zofran) 4 mg / 5 ml PO TID.
- B. Codeine 10 mg PO 30 minutes before the procedure.
- C. A transdermal fentanyl (Duragesic) patch immediately before the procedure.
- D. EMLA (eutectic mixtures of local anesthetics) 2.5 hours before the procedure.
Correct answer: D
Rationale: For a lumbar puncture in a school-age child, EMLA cream should be applied 2.5 hours before the procedure. EMLA is commonly used to numb the skin, reducing pain and discomfort for the child during the procedure. Choices A, B, and C are incorrect because ondansetron is an antiemetic, codeine is an opioid analgesic that may not be suitable for children, and transdermal fentanyl is a strong opioid that is not typically used for local anesthesia in children undergoing lumbar puncture.
3. During a follow-up clinical visit, a mother tells the nurse that her 5-month-old son, who had surgical correction for tetralogy of Fallot, has rapid breathing, often takes a long time to eat, and requires frequent rest periods. The infant is not crying while being held, and his growth is in the expected range. Which intervention should the nurse implement?
- A. Stimulate the infant to cry to produce cyanosis
- B. Auscultate the heart and lungs while the infant is held
- C. Evaluate the infant for failure to thrive
- D. Obtain a 12-lead electrocardiogram
Correct answer: B
Rationale: Auscultating the heart and lungs while the infant is held can provide important diagnostic information in assessing the cardiac and respiratory status of the infant who had surgical correction for tetralogy of Fallot. This intervention can help the nurse identify any abnormal heart or lung sounds, which may indicate complications or issues that need further evaluation or intervention.
4. The heart rate for a 3-year-old with a congenital heart defect has steadily decreased over the last few hours, now it's 76 bpm, the previous reading 4 hours ago was 110 bpm. Which additional finding should be reported immediately to a healthcare provider?
- A. Oxygen saturation 94%.
- B. RR of 25 breaths/minute.
- C. Urine output 20 mL/hr.
- D. BP 70/40.
Correct answer: D
Rationale: A significant drop in heart rate and blood pressure should be reported immediately as it may indicate worsening of the congenital heart defect. A decrease in blood pressure may suggest poor cardiac output and compromised perfusion, requiring urgent medical attention. The other findings (oxygen saturation of 94%, RR of 25 breaths/minute, and urine output of 20 mL/hr) are within normal ranges for a 3-year-old and do not indicate immediate deterioration of the heart defect.
5. The healthcare provider is assessing an infant with pyloric stenosis. Which pathophysiological mechanism is the most likely consequence of this infant's clinical picture?
- A. Metabolic alkalosis.
- B. Respiratory acidosis.
- C. Metabolic acidosis.
- D. Respiratory alkalosis.
Correct answer: A
Rationale: Pyloric stenosis leads to obstruction at the outlet of the stomach, causing frequent vomiting and loss of stomach acids. This results in a loss of hydrochloric acid and hydrogen ions, leading to metabolic alkalosis due to an increase in serum bicarbonate levels. Therefore, the correct answer is metabolic alkalosis. Choice B, respiratory acidosis, is incorrect as it is not typically associated with pyloric stenosis. Choice C, metabolic acidosis, is incorrect because the loss of stomach acids in pyloric stenosis leads to metabolic alkalosis, not acidosis. Choice D, respiratory alkalosis, is also incorrect as it is not the usual consequence of pyloric stenosis.
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