HESI LPN
Pediatric HESI Practice Questions
1. 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.” Phenylketonuria (PKU) is a metabolic disorder where the body cannot process phenylalanine properly. The diet for PKU must be continued lifelong to prevent cognitive and developmental issues, as phenylalanine buildup can cause irreversible damage. Choice A is incorrect because the nurse should provide information about the lifelong nature of the dietary restrictions for PKU. Choice B is incorrect as it suggests reintroducing protein-containing foods, which is not recommended for individuals with PKU. Choice C is incorrect as it underestimates the duration of the necessary dietary restrictions for PKU.
2. A child is admitted with extensive burns. The nurse notes burns on the child’s lips and singed nasal hairs. The nurse should suspect that the child has a(n)
- A. chemical burn
- B. inhalation injury
- C. electrical burn
- D. hot-water scald
Correct answer: B
Rationale: Burns on the lips and singed nasal hairs indicate inhalation injury, suggesting the child has inhaled hot gases or smoke. This presentation is common in cases where the respiratory tract is exposed to hot gases or smoke, leading to potential airway compromise. Choice A, chemical burn, is incorrect because there is no mention of exposure to chemicals, and the symptoms described are more indicative of inhalation injury. Choice C, electrical burn, is incorrect as there is no evidence of electrical involvement in the scenario provided. Choice D, hot-water scald, is incorrect because the presence of singed nasal hairs points more towards inhalation injury than a scald from hot water, emphasizing the need to prioritize airway management and respiratory support.
3. A nurse is assessing the oral cavity of a 6-month-old infant. The parent asks which teeth will erupt first. How should the nurse respond?
- A. Incisors
- B. Canines
- C. Upper molars
- D. Lower molars
Correct answer: A
Rationale: The correct answer is A: Incisors. In infants, incisors are usually the first teeth to erupt, typically around 6 months of age. These are the front teeth used for cutting food. Canines (Choice B), upper molars (Choice C), and lower molars (Choice D) typically erupt after the incisors. Canines are sharp teeth used for tearing food, while molars are flat teeth used for grinding food.
4. A group of nursing students is reviewing the components of the endocrine system. The students demonstrate understanding of the review when they identify what as the primary function of this system?
- A. Regulation of water balance
- B. Hormonal secretion
- C. Cellular metabolism
- D. Growth stimulation
Correct answer: B
Rationale: The correct answer is 'Hormonal secretion' (Choice B). The primary function of the endocrine system is to secrete hormones that regulate various bodily functions such as metabolism, growth, and reproduction. Choice A, 'Regulation of water balance,' is primarily controlled by the kidneys and the urinary system, not the endocrine system. Choice C, 'Cellular metabolism,' is more directly related to the functions of individual cells rather than the overall function of the endocrine system. Choice D, 'Growth stimulation,' is a function that can be influenced by hormones secreted by the endocrine system, but it is not the primary function of the system.
5. Following corrective surgery for hypertrophic pyloric stenosis (HPS), an infant is returned to the pediatric unit with an IV infusion in place. What is the priority nursing action?
- A. Apply adequate restraints.
- B. Administer a mild sedative.
- C. Assess the IV site for infiltration.
- D. Attach the nasogastric tube to wall suction.
Correct answer: C
Rationale: The priority nursing action after a corrective surgery for hypertrophic pyloric stenosis (HPS) is to assess the IV site for infiltration. This is crucial to ensure proper fluid administration and prevent complications such as extravasation or infiltration. Applying restraints (Choice A) is not indicated in this scenario and can compromise the infant's comfort and safety. Administering a mild sedative (Choice B) is not necessary and should only be done based on specific clinical indications. Attaching the nasogastric tube to wall suction (Choice D) may be important for certain conditions but is not the priority immediately post-surgery; assessing the IV site is more urgent to prevent potential complications related to IV therapy.
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