HESI RN
HESI Pediatrics Practice Exam
1. A child with pertussis is receiving azithromycin (Zithromax Injection) IV. Which intervention is most important for the nurse to include in the child's plan of care?
- A. Obtain vital signs to monitor for fluid overload
- B. Change IV site dressing every 3 days and as needed
- C. Monitor for signs of facial swelling or urticaria
- D. Assess for abdominal pain and vomiting
Correct answer: C
Rationale: When administering azithromycin IV, monitoring for signs of an allergic reaction, such as facial swelling or urticaria, is crucial. This helps in early detection of potential adverse reactions and ensures prompt intervention to prevent complications associated with the medication. The other options are not directly related to the administration of azithromycin IV in this scenario. Monitoring for fluid overload would be more relevant for fluid administration, changing IV site dressing is important but not the priority in this case, and assessing for abdominal pain and vomiting may be important but not as critical as monitoring for signs of an allergic reaction.
2. The parents of a 3-year-old boy who has Duchenne muscular dystrophy (DMD) ask, 'how can our son have this disease? We are wondering if we should have any more children.' What information should the nurse provide these parents?
- A. This is an inherited X-linked recessive disorder, which primarily affects male children in the family.
- B. The male infant had a viral infection that went unnoticed and untreated, leading to muscle damage.
- C. The lack of the protein dystrophin in the mother can impact the muscle groups of males.
- D. Damage to the spinal cord due to birth trauma from a breech vaginal birth weakens the muscles.
Correct answer: A
Rationale: The nurse should inform the parents that Duchenne muscular dystrophy is an X-linked recessive disorder, which primarily affects male children in the family. This genetic condition is caused by a mutation in the dystrophin gene located on the X chromosome. Females are usually carriers of the gene mutation and may pass it on to their sons. Daughters of carrier mothers have a 50% chance of being carriers themselves. Understanding the genetics of DMD can help the parents make informed decisions about family planning and genetic counseling.
3. 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.
4. 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.
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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