HESI LPN
Pediatrics HESI 2023
1. A nurse is caring for an infant with intractable vomiting. For what complication is it most important for the nurse to assess?
- A. Acidosis
- B. Alkalosis
- C. Hyperkalemia
- D. Hypernatremia
Correct answer: B
Rationale: When an infant experiences intractable vomiting, it can lead to the loss of stomach acids, resulting in metabolic alkalosis. Alkalosis is characterized by elevated blood pH and can lead to serious complications. Assessing for alkalosis is essential in this scenario to monitor and manage the infant's condition. Choices A, C, and D are incorrect because in this context, the primary concern is the metabolic imbalance caused by excessive vomiting, leading to alkalosis rather than acidosis, hyperkalemia, or hypernatremia.
2. The parents of a newborn with phenylketonuria (PKU) need help and support in adhering to specific dietary restrictions. They ask the nurse, “How long will our child have to be on this diet?” How should the nurse respond?
- A. “We are still not sure; you should discuss this with your health care provider.”
- B. “If your baby does well, foods containing protein can gradually be introduced.”
- C. “Your child needs to be on this diet at least through adolescence and into adulthood.”
- D. “This is a lifelong problem, and it is recommended that dietary restrictions must be continued.”
Correct answer: D
Rationale: The correct answer is D: “This is a lifelong problem, and it is recommended that dietary restrictions must be continued.” PKU requires a lifelong adherence to a specific diet low in phenylalanine to prevent cognitive and developmental issues. Phenylalanine buildup can lead to irreversible damage, making it crucial for individuals with PKU to maintain dietary restrictions throughout their lives. Choices A, B, and C are incorrect because they do not address the lifelong nature of dietary restrictions necessary for PKU management.
3. A healthcare provider is assessing a 3-month-old infant with suspected pyloric stenosis. What clinical manifestation is the healthcare provider likely to observe?
- A. Projectile vomiting
- B. Diarrhea
- C. Constipation
- D. Abdominal distension
Correct answer: A
Rationale: Projectile vomiting is a classic clinical manifestation of pyloric stenosis in infants. This occurs due to the narrowing of the pyloric sphincter, leading to the forceful expulsion of gastric contents in a projectile manner. Diarrhea (choice B) is not typically associated with pyloric stenosis. Constipation (choice C) is also not a common symptom of this condition. Abdominal distension (choice D) may occur in pyloric stenosis but is not as specific or characteristic as projectile vomiting in diagnosing this condition.
4. A healthcare provider is assessing a 2-year-old child with suspected Down syndrome. What characteristic physical feature is the healthcare provider likely to observe?
- A. Epicanthal folds
- B. Webbed neck
- C. Enlarged head
- D. Polydactyly
Correct answer: A
Rationale: Epicanthal folds are a common physical feature seen in individuals with Down syndrome. These are folds of skin that cover the inner corners of the eyes. Webbed neck (Choice B) is associated with Turner syndrome, not Down syndrome. Enlarged head (Choice C) is not a typical physical characteristic of Down syndrome. Polydactyly (Choice D) is the presence of extra fingers or toes, which is not specifically related to Down syndrome.
5. How should a nurse prepare a 15-month-old child diagnosed with hydrocephalus for a computed tomography (CT) scan?
- A. Shaving the child's head
- B. Starting the prescribed IV infusion
- C. Administering the prescribed sedative
- D. Giving the child a simple explanation of the procedure
Correct answer: D
Rationale: Preparing a toddler for a CT scan involves providing a simple explanation of the procedure to help reduce anxiety and fear. Shaving the child's head is unnecessary for a CT scan and may increase distress. Starting an IV infusion or administering sedatives may not be appropriate or necessary for all pediatric patients undergoing CT scans, especially if the child can cooperate without these interventions.
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