HESI RN
HESI Pediatrics Practice Exam
1. A 3-year-old child is admitted to the hospital with severe dehydration. The healthcare provider prescribes an IV infusion of 0.9% normal saline. The nurse notes that the child’s heart rate is 150 beats per minute, and the blood pressure is 90/50 mm Hg. What should the nurse do first?
- A. Administer the IV fluids as prescribed
- B. Notify the healthcare provider
- C. Check the child’s urine output
- D. Reassess the child’s vital signs in 30 minutes
Correct answer: A
Rationale: In a pediatric patient with severe dehydration and signs of compromised hemodynamics such as tachycardia (heart rate of 150 bpm) and hypotension (blood pressure of 90/50 mm Hg), the priority intervention is to administer IV fluids as prescribed. Immediate fluid resuscitation is essential to restore hydration, improve perfusion, and stabilize the child's vital signs. While it's important to monitor urine output, initiating fluid resuscitation takes precedence in this situation. Notifying the healthcare provider can cause a delay in critical intervention, and waiting to reassess vital signs in 30 minutes can be detrimental in a child with severe dehydration and compromised hemodynamics.
2. The mother of a 4-month-old asks the nurse for advice in preventing diaper rash. What suggestion should the nurse provide?
- A. At diaper change generously powder the baby's diaper area with talcum powder to promote dryness.
- B. Wash the diaper area every 2 hours with soap and water to help prevent skin breakdown.
- C. Use a barrier cream, such as zinc oxide, which does not have to be completely removed with each diaper change.
- D. Place a cloth diaper inside the disposable diaper for overnight periods when increased wearing time is likely.
Correct answer: C
Rationale: Using a barrier cream like zinc oxide protects the skin and helps prevent diaper rash.
3. A 7-year-old is admitted to the hospital with persistent vomiting, and a nasogastric tube attached to low intermittent suction is applied. Which finding is most important for the nurse to report to the healthcare provider?
- A. Gastric output of 100 mL in the last 8 hours.
- B. Shift intake of 640 mL IV fluids plus 30 mL PO ice chips.
- C. Serum potassium of 3.0 mEq/L.
- D. Serum pH of 7.45.
Correct answer: C
Rationale: A serum potassium level of 3.0 mEq/L is significantly low and indicates hypokalemia, which can lead to serious complications such as cardiac arrhythmias. Therefore, it is crucial for the nurse to report this finding promptly to the healthcare provider for immediate intervention. The other findings are not as critical in this situation. Gastric output of 100 mL in the last 8 hours may be expected in a patient with persistent vomiting. The shift intake of IV fluids and ice chips indicates fluid replacement, which is important but not as urgent as correcting electrolyte imbalances. A serum pH of 7.45 is within the normal range and does not indicate an immediate concern.
4. In a 7-year-old child with a history of asthma experiencing an acute asthma exacerbation and displaying wheezing and the use of accessory muscles to breathe, what is the nurse’s priority intervention?
- A. Administer a nebulized bronchodilator
- B. Obtain an arterial blood gas
- C. Start the child on oxygen therapy
- D. Notify the healthcare provider
Correct answer: A
Rationale: The correct answer is to administer a nebulized bronchodilator. During an acute asthma exacerbation in a child with wheezing and increased work of breathing, the priority intervention is to provide immediate bronchodilation to dilate the airways, relieve bronchospasm, and improve breathing. This intervention aims to manage the acute asthma attack effectively and prevent further respiratory distress. Obtaining an arterial blood gas, starting oxygen therapy, or notifying the healthcare provider are important actions, but administering a bronchodilator takes precedence in addressing the acute respiratory compromise.
5. The nurse is assessing a 3-month-old infant who was brought to the clinic by the parents due to concerns about the infant’s feeding. The parents report that the infant has been vomiting after every feeding and has not gained any weight. What should the nurse assess first?
- A. Evaluate the infant’s feeding technique
- B. Check the infant’s hydration status
- C. Measure the infant’s abdominal circumference
- D. Review the infant’s growth chart
Correct answer: B
Rationale: Assessing hydration status is crucial in an infant who is vomiting frequently, as dehydration can quickly become a serious issue. In this scenario, the infant's inability to retain feeds and lack of weight gain may indicate a potential risk of dehydration, making it essential to prioritize checking the infant's hydration status to prevent complications. Evaluating the feeding technique (Choice A) could be important but is secondary to addressing potential dehydration. Measuring the abdominal circumference (Choice C) and reviewing the growth chart (Choice D) are not the priority in this situation where dehydration is a primary concern.
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