Nursing Elites

1. The nurse is teaching a group of students about myelination in a child. Which statement by the students indicates that the teaching was successful?

• A. Myelination continues into adolescence and beyond.
• B. The process occurs in a cephalocaudal (head-to-toe) pattern.
• C. Myelination decreases the speed of nerve impulses.
• D. Myelination decreases the specificity of nerve impulses.

Correct answer: B

Rationale: The correct answer is B. Myelination occurs in a cephalocaudal (head-to-toe) pattern, improving nerve function progressively. Choice A is incorrect as myelination continues into adolescence and beyond, not just during childhood. Choice C is incorrect because myelination actually increases the speed of nerve impulses rather than decreasing it. Choice D is incorrect as myelination enhances the specificity of nerve impulses, making them more efficient and precise rather than less specific.

2. A child with a diagnosis of cystic fibrosis is under the care of a nurse. What is the priority nursing intervention?

• A. Administering pancreatic enzymes
• B. Providing respiratory therapy
• C. Encouraging physical activity
• D. Encouraging frequent handwashing

Correct answer: A

Rationale: The priority nursing intervention for a child with cystic fibrosis is administering pancreatic enzymes. This is crucial for managing the condition as it helps in proper digestion of nutrients. Providing respiratory therapy and encouraging physical activity are important aspects of care for cystic fibrosis, but administering pancreatic enzymes takes precedence due to its direct impact on the child's ability to digest and absorb essential nutrients. Encouraging frequent handwashing is a good practice for infection control but is not the priority intervention in this scenario.

3. The nurse is assisting low-income families to access health care. The nurse is aware that, in today's society, this most accurately defines the diversity of a modern family.

• A. A family consists of parents and their offspring living together.
• B. A family is whatever the child and family say it is.
• C. A family is two or more people related or unrelated who are living together.
• D. A family is two or more genetically related persons living together with separate roles.

Correct answer: B

Rationale: In today's diverse society, the concept of family has evolved beyond traditional definitions. Choice B, 'A family is whatever the child and family say it is,' reflects the contemporary understanding that families can take various forms, based on self-identification and individual perspectives. Choice A is too restrictive, as modern families may not solely consist of parents and their offspring living together. Choice C is somewhat inclusive but lacks the recognition of self-identification and diversity within families. Choice D focuses on genetic relation and roles, which may not apply to all modern family structures. Therefore, choice B is the most suitable and inclusive definition of a modern family in today's society.

4. The nurse is assessing an infant and notes that the infant's urine has a mousy or musty odor. What would the nurse suspect?

• A. Maple syrup urine disease
• B. Tyrosinemia
• C. Phenylketonuria
• D. Trimethylaminuria

Correct answer: C

Rationale: The correct answer is C: Phenylketonuria (PKU). PKU is suggested by a mousy or musty odor of the urine, which is caused by the inability to metabolize phenylalanine. Choice A, Maple syrup urine disease, is characterized by a sweet-smelling urine. Choice B, Tyrosinemia, typically presents with cabbage-like odor in the urine. Choice D, Trimethylaminuria, is associated with a fishy odor in the urine, breath, and sweat.

5. The nurse is reviewing the laboratory test results of a child with Addison's disease. What would the nurse expect to find?

• A. Hypernatremia
• B. Hyperkalemia
• C. Hyperglycemia
• D. Hypercalcemia

Correct answer: B

Rationale: In Addison's disease, adrenal insufficiency leads to decreased aldosterone production. The decreased aldosterone results in impaired sodium reabsorption and potassium excretion, leading to hyperkalemia. Hypernatremia (Choice A) is unlikely because sodium reabsorption is impaired. Hyperglycemia (Choice C) is not a typical lab finding in Addison's disease. Hypercalcemia (Choice D) is not associated with Addison's disease; rather, it can be seen in conditions like hyperparathyroidism.

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