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. The nurse is caring for a 2-year-old child who was admitted for dehydration due to gastroenteritis. The child is now receiving IV fluids and appears more alert. What is the best indicator that the child’s condition is improving?
- A. The child is more alert and playful
- B. The child’s urine output has increased
- C. The child’s vital signs are stable
- D. The child is tolerating small amounts of oral fluids
Correct answer: B
Rationale: Increased urine output is a reliable indicator that hydration status is improving. While alertness and playfulness are positive signs, increased urine output directly reflects improved hydration. Stable vital signs are important but may not directly indicate hydration status. Tolerating small amounts of oral fluids is a good sign but may not be as direct an indicator as increased urine output.
3. When should the surgical correction of hypospadias in a newborn infant typically be done?
- A. Repair should be done by one month to prevent bladder infection.
- B. To form a proper urethra repair, it should be done after sexual maturity.
- C. Repairs typically should be done before the child is potty trained.
- D. Delaying the repair until school age reduces castration fears.
Correct answer: C
Rationale: Surgical repairs for hypospadias are typically recommended to be performed before the child is potty trained. This timing helps in avoiding complications, ensures better outcomes, and makes the surgical process smoother. Early correction also minimizes the psychological impact on the child regarding genital differences and can improve long-term psychological well-being. Choices A, B, and D are incorrect because repairing hypospadias at one month to prevent bladder infection, after sexual maturity to form a proper urethra, or delaying the repair until school age to reduce castration fears are not the standard recommendations. The optimal timing for surgical correction is before the child is potty trained to achieve the best results and psychological outcomes.
4. A child who weighs 25 kg is receiving IV ampicillin at a dose of 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 correct dose for each administration, you first need to find the total daily dose: 300 mg/kg * 25 kg = 7500 mg/day. Since this total dose is divided into equally divided doses every 4 hours, there are 6 doses in 24 hours. Therefore, 7500 mg ÷ 6 doses = 1250 mg per dose. The nurse should administer 1250 mg every 4 hours, resulting in a total of 1875 mg for each dose in a 24-hour period. Choice A, 1875 mg, is the correct answer. Choice B, 625 mg, is incorrect as it does not consider the total daily dose and the frequency of administration. Choice C, 2000 mg, is incorrect as it is not the calculated dosage based on the given parameters. Choice D, 1500 mg, is also incorrect as it does not reflect the correct dosage calculation for each dose.
5. A 2-year-old is admitted to the hospital with possible encephalitis, and a lumbar puncture is scheduled. Which information should the nurse provide this child concerning the procedure?
- A. Describe the side-lying, knees to chest position that must be assumed during the procedure.
- B. Tell the child to expect loud clicking noises during the procedure that may be slightly annoying.
- C. Reassure the child that there will be no restrictions on activity after the procedure is completed.
- D. Explain that fluids cannot be taken for 8 hours before the procedure and for 4 hours after the procedure.
Correct answer: A
Rationale: The correct answer is A. Describing the side-lying, knees to chest position that must be assumed during the lumbar puncture procedure is essential as it helps the child understand what to expect, promotes cooperation, and reduces anxiety. This position is necessary for the procedure to be performed safely and effectively. Choice B is incorrect because mentioning loud clicking noises may increase the child's anxiety. Choice C is incorrect because there may be restrictions on activity after the procedure, depending on individual cases. Choice D is also incorrect as it provides information about fluid intake restrictions that are not directly related to the procedure itself.
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