HESI RN
HESI Pediatrics Practice Exam
1. The parents of a 9-month-old infant are being educated about preventing iron deficiency anemia. Which statement by the parent indicates a correct understanding of the teaching?
- A. I will start giving my baby whole cow’s milk at 12 months
- B. I will give my baby iron-fortified cereal
- C. I will give my baby fruit juice between meals
- D. I will give my baby water with meals
Correct answer: B
Rationale: The correct answer is B: 'I will give my baby iron-fortified cereal.' Iron-fortified cereal is an excellent source of iron for infants, aiding in the prevention of iron deficiency anemia. Choice A is incorrect as whole cow’s milk should not be introduced until the child is at least 12 months old to prevent iron deficiency. Choice C is incorrect because giving fruit juice between meals can interfere with iron absorption. Choice D is incorrect as giving water with meals can decrease nutrient intake. Therefore, the best choice to prevent iron deficiency anemia in a 9-month-old infant is to give them iron-fortified cereal.
2. 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.
3. A 3-year-old child with a high fever and sore throat is brought to the clinic. The nurse observes that the child is drooling and has difficulty swallowing. What is the nurse’s priority action?
- A. Administer antipyretic medication
- B. Prepare for emergency airway management
- C. Offer the child ice chips to suck on
- D. Assess the child’s hydration status
Correct answer: B
Rationale: In a 3-year-old child with drooling, difficulty swallowing, high fever, and sore throat, the nurse should prioritize preparing for emergency airway management. These signs may indicate epiglottitis, a condition that can quickly obstruct the airway, leading to respiratory distress and potentially fatal outcomes if not managed promptly. Administering antipyretic medication (Choice A) may be necessary later but is not the priority. Offering ice chips (Choice C) is contraindicated as the child has difficulty swallowing. Assessing hydration status (Choice D) is important but not the priority when the airway is at risk.
4. A child who weighs 25 kg is receiving IV ampicillin 300 mg/kg/24 hours in equally divided doses every 4 hours. How many milligrams should the nurse administer to the child for each dose?
- A. 1875 mg
- B. 625 mg
- C. 2000 mg
- D. 1500 mg
Correct answer: A
Rationale: To calculate the dose for each administration, multiply the child's weight (25 kg) by the dose (300 mg/kg/24 hours) and divide by the number of doses per day (6, as doses are every 4 hours). This gives us (25 kg * 300 mg/kg / 24 hours) / 6 doses = 1875 mg. Therefore, the nurse should administer 1875 mg for each dose. Choice B, 625 mg, is incorrect as it does not consider the correct calculation based on the weight and prescribed dose. Choice C, 2000 mg, is incorrect as it is not derived from the correct dosage calculation. Choice D, 1500 mg, is incorrect as it does not reflect the accurate dosage calculation based on the weight of the child and the prescribed dose.
5. What suggestion should the nurse provide to prevent diaper rash in a 4-month-old infant as requested by the mother?
- A. Generously powder the baby's diaper area with talcum powder at each diaper change 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 forms a protective layer on the skin, creating a barrier against irritants and moisture, thus helping to prevent diaper rash. Unlike other options, barrier creams do not need to be completely removed at each diaper change, allowing the skin to remain protected between changes.
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