HESI LPN
Pediatrics HESI 2023
1. A nurse is caring for an infant born with exstrophy of the bladder. What does the nurse determine is the greatest risk for this infant?
- A. Infection
- B. Dehydration
- C. Urinary retention
- D. Intestinal obstruction
Correct answer: A
Rationale: Infection is the greatest risk for an infant with exstrophy of the bladder due to the exposure of the bladder and surrounding tissues. The bladder mucosa and adjacent tissues being exposed increase the susceptibility to infections. Dehydration (Choice B) is not the primary concern in this condition. Urinary retention (Choice C) is less likely as exstrophy of the bladder usually presents with constant dribbling of urine. Intestinal obstruction (Choice D) is not directly related to exstrophy of the bladder.
2. Why does a cleft lip predispose an infant to infection, concerning a nurse caring for the infant?
- A. Waste products accumulate along the defect.
- B. There is inadequate circulation in the defective area.
- C. Nutrition is inadequate due to ineffective feeding.
- D. Mouth breathing dries the oropharyngeal mucous membranes.
Correct answer: D
Rationale: Mouth breathing due to a cleft lip can dry the mucous membranes, increasing their susceptibility to infection. While waste product accumulation (Choice A) and inadequate circulation (Choice B) may contribute to complications, they are not directly related to infection in this context. Inadequate nutrition (Choice C) may affect overall health but is not the primary reason for infection predisposition in this case.
3. 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.
4. 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: The correct answer is A: nondisjunction. Trisomy 21, also known as Down syndrome, is caused by nondisjunction, which is an error in cell division leading to an extra copy of chromosome 21. This additional genetic material alters the course of development and causes the characteristics associated with Down syndrome. Choices B, C, and D are incorrect. X-linked recessive inheritance refers to genetic disorders carried on the X chromosome, genomic imprinting involves gene expression based on parental origin, and autosomal dominant inheritance relates to disorders caused by a dominant gene on one of the non-sex chromosomes. In the case of trisomy 21, the cause is specifically related to the error in chromosome division, making nondisjunction the most appropriate answer.
5. 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.
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