HESI RN
Pediatric HESI
1. 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.
2. When should a mother introduce solid foods to her infant? The mother of a 4-month-old baby girl asks the nurse when she should introduce solid foods to her infant. The mother states, 'My mother says I should put rice cereal in the baby’s bottle now.' The nurse should instruct the mother to introduce solid foods when her child exhibits which behavior?
- A. Stops rooting when hungry
- B. Opens mouth when food comes her way
- C. Awakens once for nighttime feedings
- D. Gives up a bottle for a cup
Correct answer: B
Rationale: The correct answer is 'B: Opens mouth when food comes her way.' Readiness for solid foods is indicated by the infant showing interest in food and being able to sit up with support. This behavior demonstrates the infant's readiness to start introducing solid foods in their diet. Choices A, C, and D are incorrect because stopping rooting when hungry, awakening once for nighttime feedings, and giving up a bottle for a cup are not indicators of readiness for solid foods in infants.
3. The practical nurse (PN) is caring for an adolescent who has been diagnosed with mononucleosis. Which activity should the PN advise the adolescent to avoid?
- A. Playing video games.
- B. Drinking caffeinated beverages.
- C. Participating in contact sports.
- D. Eating spicy foods.
Correct answer: C
Rationale: Contact sports should be avoided in mononucleosis due to the risk of spleen rupture, which is a serious complication of the disease. The spleen can enlarge in mononucleosis, making it more susceptible to injury from contact sports, potentially leading to a life-threatening situation if rupture occurs.
4. 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.
5. 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.
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