HESI RN
HESI Pediatric Practice Exam
1. A child who is admitted to the hospital with anemia is anxious, fearful, and hyperventilating. The nurse anticipates the child developing which acid-base imbalance?
- A. Metabolic acidosis
- B. Respiratory acidosis
- C. Respiratory alkalosis
- D. Metabolic alkalosis
Correct answer: C
Rationale: In this scenario, the child is hyperventilating, which leads to excessive loss of carbon dioxide. This loss of carbon dioxide causes respiratory alkalosis due to a decrease in the partial pressure of carbon dioxide in the blood. Therefore, the correct answer is respiratory alkalosis. Choices A, B, and D are incorrect. Metabolic acidosis is characterized by a decrease in pH and bicarbonate levels due to conditions like kidney disease. Respiratory acidosis is caused by retention of carbon dioxide, leading to an increase in the partial pressure of carbon dioxide. Metabolic alkalosis results from a loss of acid or an increase in bicarbonate levels.
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 2-year-old girl is brought to the clinic by her 17-year-old mother. When the nurse observes that the child is drinking sweetened soda from her bottle, what information should the nurse discuss with this mother?
- A. A 2-year-old should be speaking in 2-word phrases
- B. Dental caries is associated with drinking soda
- C. Drinking soda is related to childhood obesity
- D. Toddlers should be sleeping 10 hours a night
Correct answer: B
Rationale: Dental caries are a common concern when children consume sweetened sodas regularly.
4. The nurse is planning for a 5-month-old with gastroesophageal reflux disease whose weight has decreased by 3 ounces since the last clinic visit one month ago. To increase caloric intake and decrease vomiting, what instructions should the nurse provide this mother?
- A. Give small amounts of baby food with each feeding.
- B. Thicken formula with cereal for each feeding.
- C. Dilute the child's formula with equal parts of water.
- D. Offer 10% dextrose in water between most feedings.
Correct answer: B
Rationale: Thickening formula with cereal is a recommended intervention for infants with gastroesophageal reflux disease (GERD) to help reduce vomiting and increase caloric intake. This modification can help the infant keep the food down better, reducing reflux symptoms while providing adequate nutrition. Giving small amounts of baby food with each feeding (Choice A) is not recommended for a 5-month-old with GERD as it may exacerbate symptoms. Diluting the child's formula with equal parts of water (Choice C) can lead to inadequate nutrition and is not advisable. Offering 10% dextrose in water between most feedings (Choice D) is not appropriate for managing GERD in infants and does not address the underlying issue of reflux.
5. When teaching parents of a 5-year-old child with sickle cell anemia about pain management, what information should be included?
- A. Apply cold compresses to painful areas.
- B. Encourage the child to rest as much as possible.
- C. Administer prescribed pain medication at the first sign of pain.
- D. Offer a high-protein diet to help with pain management.
Correct answer: C
Rationale: Administering prescribed pain medication at the first sign of pain is crucial in managing sickle cell anemia-related pain effectively. Prompt administration helps prevent the pain from escalating and becoming severe, enhancing the child's comfort and quality of life. Cold compresses, rest, and diet modifications may play supportive roles but are not as directly impactful in addressing acute pain episodes associated with sickle cell anemia. Therefore, while comforting measures like cold compresses and rest are helpful, they should not replace the importance of timely administration of prescribed pain medication. Additionally, offering a high-protein diet, although important for overall health, is not directly linked to managing acute pain in sickle cell anemia.
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