HESI RN
HESI Pediatric Practice Exam
1. The nurse is caring for a 4-year-old child who is hospitalized with pneumonia. The child is receiving IV antibiotics and oxygen therapy. The nurse notes that the child’s respiratory rate is 40 breaths per minute, and the oxygen saturation is 92%. What is the nurse’s priority action?
- A. Increase the child’s oxygen flow rate
- B. Notify the healthcare provider
- C. Encourage the child to take deep breaths
- D. Auscultate the child’s lung sounds
Correct answer: D
Rationale: In this scenario, the child is hospitalized with pneumonia, receiving IV antibiotics and oxygen therapy. With a high respiratory rate and decreased oxygen saturation, auscultating the child’s lung sounds is the priority action. This assessment can provide crucial information about the child’s respiratory status, such as the presence of adventitious sounds or decreased air entry, which can guide further interventions and help in evaluating the effectiveness of the current treatments. Increasing the oxygen flow rate may not address the underlying issue causing the decreased oxygen saturation. Notifying the healthcare provider can be necessary but auscultating lung sounds should be done first to gather more information. Encouraging the child to take deep breaths is important for respiratory function but should not be the immediate priority in this situation.
2. The parents of a 3-year-old boy who has Duchenne muscular dystrophy ask, 'How can our son have this disease? We are wondering if we should have any more children.' What information should the nurse provide to parents?
- 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: The correct answer is A. Duchenne muscular dystrophy is an X-linked recessive disorder that primarily affects males. It is crucial for the nurse to explain to the parents that this condition follows an inheritance pattern where the gene mutation responsible for the disorder is located on the X chromosome. Males have only one X chromosome, so if they inherit the mutated gene, they will develop the disease. Females, on the other hand, have two X chromosomes, providing a backup copy that can compensate for the mutation. Understanding this inheritance pattern is essential for family planning decisions, as the risk of passing on the disorder to future children can be explained based on this genetic inheritance. Choices B, C, and D are incorrect because they do not address the genetic basis of Duchenne muscular dystrophy or its inheritance pattern, which is crucial information for the parents in this scenario.
3. What response should the practical nurse (PN) provide when a school-age child asks to talk with a dying sister?
- A. Talk loudly to ensure the dying person hears and recognizes others' voices.
- B. Touch can provide a tactile presence if the dying person does not respond to words.
- C. Sitting close offers the dying person the sensation of others' presence.
- D. Although the dying person may not respond, they can still hear what is said.
Correct answer: D
Rationale: The correct response is D because it is believed that hearing is the last sense to go. Even if the dying person does not respond, speaking to them can still provide comfort. Choice A is incorrect because talking loudly is not necessary and can be distressing. Choice B is incorrect as it focuses on touch rather than the sense of hearing. Choice C is incorrect because sitting close may not necessarily help the dying person hear better.
4. A two-year-old child with heart failure is admitted for replacement of a graft for coarctation of the aorta. Prior to administering the next dose of digoxin (Lanoxin), the nurse obtains an apical heart rate of 128 bpm. What action should the nurse take?
- A. Determine the pulse deficit.
- B. Administer the scheduled dose.
- C. Calculate the safe dose range.
- D. Review the serum digoxin level.
Correct answer: B
Rationale: Administering the scheduled dose is appropriate in this scenario as the heart rate of 128 bpm falls within the acceptable range for a two-year-old child with heart failure. It indicates that the child may benefit from the therapeutic effects of digoxin. Monitoring the heart rate closely after administration is essential to ensure the medication's effectiveness and safety. Determining the pulse deficit (Choice A) is not necessary in this situation as the heart rate is within the acceptable range. Calculating the safe dose range (Choice C) is not needed since the heart rate is already within the expected parameters. Reviewing the serum digoxin level (Choice D) is not the immediate action required in this case where the heart rate is within the normal range.
5. What intervention should the nurse implement first for a male toddler brought to the emergency center approximately three hours after swallowing tablets from his grandmother's bottle of digoxin (Lanoxin)?
- A. Administer activated charcoal
- B. Prepare gastric lavage
- C. Obtain a 12-lead electrocardiogram
- D. Give IV digoxin immune fab (Digibind)
Correct answer: A
Rationale: Administering activated charcoal is the priority intervention as it binds with digoxin, preventing further absorption in the gastrointestinal tract. This helps reduce the amount of digoxin available for systemic circulation and minimizes its toxic effects. Gastric lavage is no longer recommended due to potential complications and lack of evidence of efficacy. Obtaining an electrocardiogram may help assess the effects of digoxin toxicity, but it is not the initial priority. IV digoxin immune fab (Digibind) is used in severe cases of digoxin toxicity but is not the first-line intervention.
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