Nursing Elites

1. 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.

2. A child is admitted with extensive burns. The nurse notes burns on the child’s lips and singed nasal hairs. The nurse should suspect that the child has a(n)

• A. chemical burn
• B. inhalation injury
• C. electrical burn
• D. hot-water scald

Correct answer: B

Rationale: Burns on the lips and singed nasal hairs are indicative of an inhalation injury. This suggests that the child has likely inhaled hot gases or smoke, leading to damage in the respiratory tract. Choice A, chemical burn, is incorrect because the symptoms described are more aligned with inhalation rather than direct contact with chemicals. Choice C, electrical burn, is incorrect as there are no mentions of contact with an electrical source. Choice D, hot-water scald, is also incorrect as the presentation of burns on the lips and singed nasal hairs is not characteristic of scald injuries.

3. A parent asks a nurse how to tell the difference between measles (rubeola) and German measles (rubella). What should the nurse tell the parent about rubeola that is different from rubella?

• A. High fever and Koplik spots
• B. Rash on the trunk with pruritus
• C. Nausea, vomiting, and abdominal cramps
• D. Characteristics of a cold, followed by a rash

Correct answer: A

Rationale: The correct answer is A: 'High fever and Koplik spots.' Rubeola (measles) is characterized by a high fever and the presence of Koplik spots, which are not seen in rubella (German measles). Choice B, rash on the trunk with pruritus, is more indicative of rubella. Choice C, nausea, vomiting, and abdominal cramps, are not specific to either rubeola or rubella. Choice D, characteristics of a cold followed by a rash, is not a typical presentation of rubeola or rubella.

4. A nurse is preparing a presentation for a parent group about musculoskeletal injuries. When describing a child's risk for this type of injury, the nurse integrates knowledge that bone growth occurs primarily in which area?

• A. Growth plate.
• B. Epiphysis.
• C. Physis.
• D. Metaphysis.

Correct answer: B

Rationale: The correct answer is B: Epiphysis. Bone growth primarily occurs in the epiphysis, which is the area where growth plates are located. The epiphysis is responsible for longitudinal bone growth. Choice A, 'Growth plate,' is incorrect as it does not specify the exact area where bone growth primarily occurs. Choice C, 'Physis,' refers to the same structure as a growth plate, but the term 'epiphysis' is more specific to bone growth. Choice D, 'Metaphysis,' is incorrect as it is the area of the bone where the epiphysis meets the diaphysis, not the primary site of bone growth.

5. A child with a diagnosis of leukemia is admitted to the hospital with a fever. What is the priority nursing intervention?

• A. Administering antibiotics
• B. Administering antipyretics
• C. Providing nutritional support
• D. Monitoring for signs of infection

Correct answer: D

Rationale: The priority nursing intervention for a child with leukemia admitted to the hospital with a fever is to monitor for signs of infection. Children with leukemia are immunocompromised, making them more susceptible to infections. Monitoring for signs of infection helps in early detection and timely intervention, which is crucial in preventing complications. Administering antibiotics (choice A) may be necessary if an infection is suspected or confirmed, but the priority is to assess for signs of infection first. Administering antipyretics (choice B) may help reduce fever, but it does not address the underlying cause, which could be an infection. Providing nutritional support (choice C) is important for overall health but is not the priority when a child with leukemia presents with a fever, as infection needs to be ruled out or managed first.

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