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 leukemia is receiving chemotherapy. What is the priority nursing intervention?

• A. Monitoring for signs of infection
• B. Providing nutritional support
• C. Monitoring for signs of bleeding
• D. Monitoring for signs of pain

Correct answer: A

Rationale: The priority nursing intervention for a child with leukemia receiving chemotherapy is monitoring for signs of infection. Chemotherapy can suppress the immune system, putting the child at a higher risk of developing infections. Early detection of signs of infection is crucial to prevent serious complications and initiate timely treatment. Providing nutritional support is important for overall health but is not the priority when the child is at risk of infection. Monitoring for signs of bleeding is essential, but infection surveillance takes precedence due to the immediate threat it poses to the child's health. Monitoring for signs of pain is important for comfort but is not the priority over infection prevention and management.

3. When caring for a child diagnosed with bronchiolitis, what is the priority nursing intervention?

• A. Administering bronchodilators
• B. Providing respiratory therapy
• C. Monitoring oxygen saturation
• D. Encouraging fluid intake

Correct answer: B

Rationale: The priority nursing intervention for a child with bronchiolitis is providing respiratory therapy. This intervention aims to maintain airway patency, optimize oxygenation, and support effective breathing. Administering bronchodilators, though important, may not be the initial priority as respiratory therapy takes precedence in ensuring adequate oxygenation and ventilation. Monitoring oxygen saturation is crucial but is usually part of the ongoing assessment following the initiation of respiratory therapy. Encouraging fluid intake is essential for hydration but is not the priority intervention when addressing the respiratory distress associated with bronchiolitis.

4. When a family decides to withhold 'extraordinary care' for a newborn with severe abnormalities, what does this decision indicate?

• A. The newborn has no rights.
• B. It is the same as euthanasia.
• C. It is illegal professional practice.
• D. The newborn is being allowed to die.

Correct answer: D

Rationale: When a family decides to withhold 'extraordinary care' for a newborn with severe abnormalities, it means that aggressive interventions will not be pursued, allowing the newborn to die naturally. This decision is legal and ethical, respecting the principle of non-maleficence by avoiding unnecessary suffering. Choice A is incorrect because all individuals, including newborns, have rights, but the decision to withhold extraordinary care is based on ethical considerations. Choice B is incorrect as withholding care is not the same as euthanasia, which involves actively ending life. Choice C is incorrect as long as the decision is made within legal and ethical boundaries, it is not considered illegal professional practice.

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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