HESI LPN
Pediatric HESI 2024
1. What should be included in the teaching plan for parents of an infant diagnosed with phenylketonuria (PKU)?
- A. Mental retardation occurs if PKU is untreated.
- B. Testing for PKU is done immediately after birth.
- C. Treatment for PKU includes lifelong dietary management.
- D. PKU is transmitted by an autosomal recessive gene.
Correct answer: A
Rationale: The correct answer is A: 'Mental retardation occurs if PKU is untreated.' Phenylketonuria (PKU) is a metabolic disorder that, if left untreated with dietary management, can lead to severe mental retardation due to the accumulation of phenylalanine. It is crucial for parents to understand the potential consequences of untreated PKU to emphasize the importance of early and consistent treatment. Choice B is incorrect because testing for PKU is typically done through newborn screening shortly after birth, not immediately. Choice C is incorrect as treatment for PKU primarily involves strict dietary management that restricts phenylalanine intake, not lifelong medications. Choice D is incorrect as PKU is inherited in an autosomal recessive pattern, meaning that both parents must pass on a mutated gene for the disorder to manifest.
2. A young child has coarctation of the aorta. What does the nurse expect to identify when taking the child’s vital signs?
- A. A weak radial pulse
- B. An irregular heartbeat
- C. A bounding femoral pulse
- D. An elevated radial blood pressure
Correct answer: A
Rationale: In coarctation of the aorta, there is narrowing of the aorta leading to decreased blood flow distal to the constriction. This results in a weak or delayed femoral pulse and a relatively weaker radial pulse compared to the femoral pulse. An irregular heartbeat (choice B) is not a typical finding in coarctation of the aorta. A bounding femoral pulse (choice C) would not be expected due to the decreased blood flow beyond the constriction. An elevated radial blood pressure (choice D) is not a common characteristic of coarctation of the aorta; instead, blood pressure may be higher in the upper extremities compared to the lower extremities due to the constriction.
3. Which of the following techniques represents the most appropriate method of opening the airway of an infant with no suspected neck injury?
- A. lift up the chin and hyperextend the neck
- B. tilt the head back without hyperextending the neck
- C. gently lift the chin while maintaining slight flexion of the neck
- D. perform the technique as you would for an older child or adult
Correct answer: B
Rationale: The correct technique for opening the airway of an infant with no suspected neck injury is to tilt the head back without hyperextending the neck. This method helps to keep the airway open without risking injury to the infant's delicate neck structures. Choice A, lifting up the chin and hyperextending the neck, can potentially harm the infant's neck. Choice C, gently lifting the chin while maintaining slight flexion of the neck, is not as effective as tilting the head back. Choice D is incorrect as infants require a different approach compared to older children or adults due to their anatomical differences.
4. The nurse is planning a discussion group for parents with children who have cancer. How would the nurse describe a difference between cancer in children and adults?
- A. Most childhood cancers affect tissues rather than organs.
- B. Childhood cancers are usually localized when found.
- C. Unlike adult cancers, childhood cancers are less responsive to treatment.
- D. The majority of childhood cancers can be prevented.
Correct answer: A
Rationale: The correct answer is A. Most childhood cancers, such as leukemias and sarcomas, affect tissues rather than specific organs, unlike many adult cancers. Choice B is incorrect because childhood cancers may not always be localized when found. Choice C is incorrect as childhood cancers can be responsive to treatment, although treatment approaches may differ from adult cancers. Choice D is incorrect as the majority of childhood cancers cannot be prevented; however, certain risk factors can be managed to reduce the risk of developing cancer.
5. What behavior does the nurse anticipate while feeding a newborn with choanal atresia?
- A. Chokes on the feeding
- B. Has difficulty swallowing
- C. Does not appear to be hungry
- D. Takes about half of the feeding
Correct answer: D
Rationale: Correct answer: When feeding a newborn with choanal atresia, the nurse should anticipate that the infant may take only part of the feeding. This behavior is due to the condition causing difficulty in breathing through the nose while feeding, prompting the infant to pause for air. Choice A, 'Chokes on the feeding,' is incorrect as it does not specifically relate to the feeding behavior expected in choanal atresia. Choice B, 'Has difficulty swallowing,' is also incorrect because the issue in choanal atresia is primarily related to breathing rather than swallowing. Choice C, 'Does not appear to be hungry,' is not the typical behavior seen in infants with choanal atresia; they may still display hunger cues but struggle with feeding due to the condition.
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