HESI RN
HESI Practice Test Pediatrics
1. When instilling ear drops in a 2-year-old child, how should the practical nurse (PN) position the earlobe to straighten the external auditory canal?
- A. Up and back.
- B. Down and back.
- C. Up and forward.
- D. Down and forward.
Correct answer: B
Rationale: When administering ear drops to a child under three years old, it is essential to pull the earlobe down and back. This positioning helps straighten the external auditory canal, facilitating the proper administration of the ear drops. Pulling the earlobe down and back in young children aims to ensure that the medication reaches the intended area for optimal effectiveness.
2. 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.
3. A 10-year-old child is admitted with diabetic ketoacidosis (DKA). Which laboratory value should the practical nurse (PN) anticipate?
- A. Elevated blood glucose.
- B. Decreased serum ketones.
- C. Low urine glucose.
- D. High bicarbonate levels.
Correct answer: A
Rationale: In a case of diabetic ketoacidosis (DKA), the primary feature is elevated blood glucose levels due to insulin deficiency. Additionally, ketones are increased in the blood and urine. Bicarbonate levels are usually low because of the metabolic acidosis that accompanies DKA. Therefore, the practical nurse should anticipate elevated blood glucose levels as a characteristic laboratory finding in a child admitted with DKA. Choice B is incorrect because serum ketones are increased in DKA. Choice C is incorrect because in DKA, urine glucose is typically high due to spillage of glucose into the urine. Choice D is incorrect because bicarbonate levels are usually low in DKA, not high.
4. When reinforcing information about the use of corticosteroids in treating asthma in children, which statement indicates that the parent understands the teaching?
- A. My child should take the medication only when experiencing symptoms.
- B. I will rinse my child's mouth after each use of the inhaler.
- C. I should discontinue the medication if my child seems better.
- D. Corticosteroids are used for quick relief during an asthma attack.
Correct answer: B
Rationale: Rinsing the mouth after using corticosteroid inhalers is crucial as it helps prevent oral thrush, a common side effect associated with these medications. This practice reduces the risk of developing fungal infections in the mouth and throat, maintaining optimal oral health during asthma treatment.
5. What is the most important information for the PN to reinforce with the parents when caring for a child diagnosed with acute rheumatic fever?
- A. Complete the full course of prescribed antibiotics.
- B. Ensure the child gets plenty of physical exercise.
- C. Keep the child on a low-sodium diet.
- D. Administer prescribed pain medications as needed.
Correct answer: A
Rationale: Completing the full course of antibiotics is crucial in the management of acute rheumatic fever as it helps prevent recurrence and complications. Antibiotics are essential in eradicating the underlying infection that triggers the autoimmune response leading to rheumatic fever. Reinforcing the importance of completing the prescribed antibiotic regimen is vital to ensure the child's recovery and prevent further health issues. Choices B, C, and D are not as critical as completing the antibiotic treatment. While physical exercise, a low-sodium diet, and pain management are important aspects of overall health, they are not the primary focus when managing acute rheumatic fever.
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