Nursing Elites

1. The parents of a 6-week-old infant who was born without an immune system ask a nurse why their baby is still so healthy. How should the nurse reply?

• A. Exposure to pathogens during this time can be limited.
• B. Some antibodies are produced by the infant’s colonic bacteria.
• C. Antibodies are passively received from the mother through the placenta and breast milk.
• D. Fewer antibodies are produced by the fetal thymus during the eighth and ninth months of gestation.

Correct answer: C

Rationale: The correct answer is C. Infants receive passive immunity through antibodies from the mother during pregnancy and breastfeeding, which protect them initially. Choice A is incorrect because a 6-week-old infant born without an immune system would not be able to limit exposure to pathogens effectively. Choice B is incorrect as antibodies produced by colonic bacteria are not a significant source of immunity in infants. Choice D is incorrect as the fetal thymus primarily plays a role in T cell development rather than antibody production during gestation.

2. A child with a diagnosis of diabetes insipidus is admitted to the hospital. What is the priority nursing intervention?

• A. Administering insulin
• B. Monitoring fluid balance
• C. Administering diuretics
• D. Monitoring vital signs

Correct answer: B

Rationale: The correct answer is monitoring fluid balance. In a child with diabetes insipidus, the primary concern is excessive urination and fluid loss, which can lead to dehydration. Monitoring fluid balance is crucial to prevent dehydration and maintain electrolyte balance. Administering insulin (Choice A) is not indicated in diabetes insipidus, as this condition is not related to insulin deficiency. Administering diuretics (Choice C) should be avoided as it can exacerbate fluid loss in a child already at risk for dehydration. While monitoring vital signs (Choice D) is important, the priority intervention in this situation is monitoring fluid balance to prevent complications associated with dehydration.

3. What should the nurse suggest to a parent asking for advice on managing their child's earache and fever?

• A. Applying a warm compress to the affected ear
• B. Giving the child a cold drink
• C. Administering acetaminophen
• D. Taking the child to the emergency department

Correct answer: A

Rationale: The correct answer is to suggest applying a warm compress to the affected ear. This can help alleviate pain and discomfort associated with the earache. Giving a cold drink (Choice B) may not address the underlying issue and is not a recommended treatment for earaches. Administering acetaminophen (Choice C) can help reduce fever but may not directly target the earache. Taking the child to the emergency department (Choice D) is usually not necessary for a common earache unless there are severe symptoms or complications present.

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. 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.

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