HESI LPN
Pediatrics HESI 2023
1. A child with a diagnosis of pyloric stenosis is scheduled for surgery. What preoperative intervention is important for the nurse to perform?
- A. Administering intravenous fluids
- B. Monitoring for signs of infection
- C. Monitoring for signs of dehydration
- D. Monitoring for signs of pain
Correct answer: C
Rationale: The correct preoperative intervention for a child with pyloric stenosis is to monitor for signs of dehydration. Pyloric stenosis can lead to vomiting, which can result in dehydration. Monitoring for signs of dehydration is crucial to ensure the child's fluid balance is maintained. Administering intravenous fluids, although important for managing dehydration and electrolyte imbalances, would typically be done postoperatively rather than as a preoperative intervention. Monitoring for signs of infection is important but not specific to the preoperative period for pyloric stenosis. Monitoring for signs of pain is also important but may not be the most critical preoperative intervention in this scenario.
2. The parents of a 6-month-old infant are concerned about the risk of sudden infant death syndrome (SIDS). What should the nurse recommend to reduce the risk?
- A. Place the infant on their back to sleep
- B. Use a pacifier during sleep
- C. Have the infant sleep on their side
- D. Keep the infant's room cool
Correct answer: A
Rationale: The correct recommendation to reduce the risk of SIDS in infants is to place them on their back to sleep. This sleeping position helps prevent the occurrence of SIDS by maintaining an open airway and reducing the risk of suffocation. Using a pacifier during sleep has also shown some protective effect against SIDS, but it is not as effective as placing the infant on their back. Having the infant sleep on their side is not recommended as it can increase the risk of accidental suffocation. Keeping the infant's room cool does not directly reduce the risk of SIDS.
3. A nurse on the pediatric unit is observing the developmental skills of several 2-year-old children in the playroom. Which child should the nurse continue to evaluate?
- A. Cannot stand on one foot
- B. Builds a tower of 7 blocks
- C. Uses echolalia when speaking
- D. Colors outside the lines of a picture
Correct answer: C
Rationale: The correct answer is C. Using echolalia, which is the repetition of words or phrases, is not typical for a 2-year-old child and may indicate the need for further evaluation. Choices A, B, and D are all within the expected developmental skills for a 2-year-old. While most 2-year-olds may not be able to stand on one foot, it is not a cause for concern at this age. Building a tower of 7 blocks and coloring outside the lines of a picture are both appropriate for a 2-year-old's developmental skills.
4. A parent of a 2-year-old child tells a nurse at the clinic, 'Whenever I go to the store, my child has a screaming tantrum, demanding a toy or candy on the shelves. How can I deal with this situation?' What is the nurse’s best response?
- A. “Attempt to distract the child by offering a toy to the child.”
- B. “Say nothing and allow the tantrum to continue until it ends.”
- C. “Have a babysitter stay with the child at home until the child outgrows this behavior.”
- D. “Give the child the item while in the store, and when the child loses interest, return the item to the shelf.”
Correct answer: B
Rationale: The nurse's best response is to allow the tantrum to continue until it ends without giving in to the child's demands. By not rewarding the child with the desired item during a tantrum, the child learns that this behavior is not effective in getting what they want. Offering a toy to distract the child (Choice A) may reinforce the idea that tantrums lead to rewards. Leaving the child with a babysitter (Choice C) does not address the issue at hand, which is teaching the child appropriate behavior in public places. Giving the child the item temporarily (Choice D) may encourage the child to have tantrums in the future to obtain desired items.
5. When teaching a class about trisomy 21, the instructor would identify the cause of this disorder as:
- A. nondisjunction.
- B. X-linked recessive inheritance.
- C. genomic imprinting.
- D. autosomal dominant inheritance.
Correct answer: A
Rationale: Trisomy 21, also known as Down syndrome, is caused by nondisjunction, which is an error in cell division that leads to the presence of an extra chromosome 21. This additional chromosome alters the normal genetic makeup, resulting in the characteristics associated with Down syndrome. Therefore, the correct answer is nondisjunction (Choice A). Choices B, C, and D are incorrect because Trisomy 21 is not caused by X-linked recessive inheritance, genomic imprinting, or autosomal dominant inheritance. Understanding the specific genetic mechanism involved in Trisomy 21 is crucial for grasping the basis of this chromosomal disorder.
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