HESI RN
HESI Practice Test Pediatrics
1. What advice should be provided by the practical nurse to the mother of a school-age child with acute diarrhea and mild dehydration who is occasionally vomiting despite being given an oral rehydration solution (ORS)?
- A. Continue to give ORS frequently in small amounts.
- B. Alternate between ORS and carbonated beverages.
- C. Take the child to the hospital for intravenous fluids.
- D. Place the child NPO for the next eight to nine hours.
Correct answer: A
Rationale: The practical nurse should advise the mother to continue providing the oral rehydration solution (ORS) frequently in small amounts. It is essential to continue ORS administration to prevent dehydration, even if the child is occasionally vomiting. Small, frequent amounts of ORS help maintain hydration levels in children with acute diarrhea and mild dehydration.
2. What information should the nurse provide to parents of a 3-year-old boy with Duchenne muscular dystrophy who inquire about the disease and future children?
- A. This is an inherited X-linked recessive disorder, which primarily affects male children in the family
- B. The striated muscle groups of males can be impacted by a lack of the protein dystrophin in their mothers
- C. The male infant had a viral infection that went unnoticed and untreated so muscle damage was incurred
- D. Birth trauma with a breech vaginal birth causes damage to the spinal cord, thus weakening the muscles
Correct answer: A
Rationale: Duchenne muscular dystrophy is an X-linked recessive disorder caused by mutations in the DMD gene on the X chromosome. This disorder primarily affects males because they have one X chromosome, inherited from their mothers, who may be carriers of the mutated gene. Females have two X chromosomes, providing a protective effect as the normal gene on one X chromosome can compensate for the mutated gene on the other. Therefore, the nurse should explain to the parents that Duchenne muscular dystrophy is an inherited X-linked recessive disorder, which is why their son has the disease and why there is a risk of passing it on to future sons. Choice B is incorrect as it inaccurately implies that the lack of dystrophin in mothers impacts their sons' muscle groups. Choice C is incorrect as it suggests a viral infection caused the muscle damage, which is not the case with Duchenne muscular dystrophy. Choice D is incorrect as it attributes the muscle weakness to birth trauma instead of the genetic nature of the disorder.
3. 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.
4. A middle school student was recently diagnosed with attention-deficit hyperactivity disorder (ADHD) and is having trouble with his grades. He is referred to the school nurse by the teacher because he continues to have learning problems. Which action should the school nurse take?
- A. Ask the parents to have the child seen by a clinical psychologist
- B. Ask the parents to become involved in helping the child with his homework
- C. Refer the child to the school counselor for educational testing
- D. Seek the advice of the school principal regarding the child's learning needs
Correct answer: C
Rationale: Referring the child to the school counselor for educational testing is the most appropriate action in this scenario. This step can help identify the specific learning needs of the student and determine the appropriate interventions required to support his academic success. Option A is not the immediate action needed but may be considered in the future. Option B focuses on homework assistance, which may not address the underlying learning problems. Option D involves consulting the school principal, which is not the primary role in addressing the student's learning needs.
5. A mother brings her 2-year-old son to the clinic because he has been crying and pulling on his earlobe for the past 12 hours. The child's oral temperature is 101.2°F. Which intervention should the nurse implement?
- A. Ask the mother if the child has had a runny nose
- B. Cleanse purulent exudate from the affected ear canal
- C. Apply a topical antibiotic to the periauricular area
- D. Provide parent education to prevent recurrence
Correct answer: A
Rationale: In a child presenting with ear pain and fever, asking if the child has had a runny nose is crucial in assessing possible causes of an ear infection. Respiratory infections can lead to secondary ear infections, so exploring symptoms related to upper respiratory tract infections, like a runny nose, can help in the evaluation and management of the child's condition. Choice B is incorrect because cleansing purulent exudate should be done by a healthcare provider, not a nurse, and only if necessary. Choice C is incorrect because applying a topical antibiotic without proper evaluation and prescription is not within the nurse's scope of practice. Choice D is incorrect because while parent education may be necessary, addressing the immediate concern of evaluating possible causes of the ear pain and fever takes priority.
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