Nursing Elites

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

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

Correct answer: C

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

2. 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.

3. Why should a nurse plan an evening snack for a child receiving Novolin N insulin?

• A. To encourage the child to adhere to the diet.
• B. To provide energy for immediate use.
• C. To help the child gain weight with extra calories.
• D. To counteract late insulin activity with nourishment.

Correct answer: D

Rationale: The correct answer is D. Novolin N insulin peaks in the evening, which can lead to hypoglycemia during the night. Providing an evening snack helps to counteract the late insulin activity and prevent hypoglycemia. Choice A is incorrect because the primary reason for the evening snack is not to encourage adherence to the diet. Choice B is incorrect as the snack is not primarily for immediate energy use. Choice C is incorrect as the goal of the snack is not to help the child gain weight but to manage blood sugar levels.

4. A nurse is caring for an infant with phenylketonuria (PKU). What diet should the nurse anticipate will be ordered by the healthcare provider?

• A. Fat-free
• B. Protein-enriched
• C. Phenylalanine-free
• D. Low-phenylalanine

Correct answer: D

Rationale: A low-phenylalanine diet is necessary for infants with PKU because it helps prevent the accumulation of phenylalanine, which can result in brain damage. Fat-free (Choice A) and protein-enriched (Choice B) diets are not specifically indicated for PKU. While phenylalanine-free (Choice C) may seem logical, complete elimination of phenylalanine is not practical or safe as it is an essential amino acid. Therefore, the correct choice is a low-phenylalanine diet, which restricts phenylalanine intake to a safe level.

5. A nurse is caring for an infant with a tentative diagnosis of hypertrophic pyloric stenosis (HPS). What is most important for the nurse to assess?

• A. Quality of the cry
• B. Signs of dehydration
• C. Coughing up feedings
• D. Characteristics of the stool

Correct answer: B

Rationale: The correct answer is B: Signs of dehydration. Assessing for signs of dehydration is crucial in infants with hypertrophic pyloric stenosis (HPS) because they are at high risk due to frequent vomiting. Dehydration can lead to serious complications if not promptly addressed. Choices A, C, and D are not the priority assessments for HPS. While the quality of the cry can provide some information on the infant's distress level, dehydration assessment takes precedence. Coughing up feedings may not be specific to HPS, and characteristics of the stool, although important in general assessments, are not the priority in this situation.

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