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. A mother brings her 3-month-old infant to the clinic, concerned about frequent vomiting after feeding. The practical nurse (PN) suspects gastroesophageal reflux (GER). Which recommendation should the PN provide to the mother?
- A. Feed the infant in a prone position.
- B. Provide larger, less frequent feedings.
- C. Keep the infant upright for 30 minutes after feeding.
- D. Offer only formula thickened with rice cereal.
Correct answer: C
Rationale: The correct recommendation for reducing symptoms of gastroesophageal reflux (GER) in infants is to keep the infant upright for 30 minutes after feeding. This position helps prevent the backflow of stomach contents, alleviating symptoms of reflux. Placing the infant in a prone position or providing larger, less frequent feedings may worsen symptoms by increasing the likelihood of regurgitation. Offering only formula thickened with rice cereal is not the first-line intervention for GER and should not be recommended initially.
3. After reinforcing information on treating a sprained ankle, what statement by the adolescent indicates to the practical nurse that further instruction is needed?
- A. Keep the leg elevated when sitting.
- B. Wrap the ankle in an elastic bandage for support.
- C. Apply warm compresses to the ankle for the first 24 hours.
- D. Put an ice pack on the ankle, alternating 30 minutes on and 30 minutes off.
Correct answer: C
Rationale: The correct answer is C. Applying warm compresses to a sprained ankle within the first 24 hours is incorrect as it can increase swelling and inflammation. Instead, cold compresses are recommended to help reduce swelling and pain. Option A, keeping the leg elevated, helps in reducing swelling. Option B, wrapping the ankle in an elastic bandage, provides support. Option D, using an ice pack in intervals, is effective in reducing swelling and pain. Therefore, the statement about applying warm compresses indicates the need for further instruction.
4. What action should the nurse take when a child presents with fever, sore throat, swollen red spots, and fluid-filled blisters?
- A. Obtain a fluid culture from the blisters
- B. Administer a fever-reducing medication
- C. Cover the drainage vesicles with a dressing
- D. Implement transmission precautions
Correct answer: D
Rationale: When a child presents with fever, sore throat, swollen red spots, and fluid-filled blisters, it may indicate a contagious viral infection. In such cases, implementing transmission precautions is crucial to prevent the spread of the infection to others in the pediatric clinic or community. Obtaining a fluid culture from the blisters (Choice A) may not be necessary at the initial stage without knowing the cause of the infection. Administering a fever-reducing medication (Choice B) may help manage symptoms but doesn't address the need for preventing transmission. Covering the drainage vesicles with a dressing (Choice C) may provide comfort to the child but does not directly address the risk of transmission to others.
5. The nurse is assessing a 6-month-old infant. Which response requires further evaluation by the nurse?
- A. Has doubled birth weight.
- B. Turns head to locate sound.
- C. Plays peek-a-boo.
- D. Demonstrates startle reflex.
Correct answer: D
Rationale: At 6 months old, the startle reflex should diminish, so its persistence warrants further evaluation by the nurse. Choices A, B, and C are appropriate developmental milestones for a 6-month-old infant. By 6 months, infants typically double their birth weight, exhibit localization of sound by turning their head, and engage in interactive play like peek-a-boo.
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