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 nurse is evaluating a 3-year-old child’s developmental progress. The inability to perform which task indicates to the nurse that there is a developmental delay?

• A. Copying a square
• B. Hopping on one foot
• C. Catching a ball reliably
• D. Using a spoon effectively

Correct answer: A

Rationale: The inability to copy a square at 3 years old indicates a potential developmental delay in fine motor skills. At this age, children should be able to copy basic shapes like circles and crosses. Hopping on one foot is typically expected around the age of 4, catching a ball reliably around 5, and using a spoon effectively by 2-3 years old. Therefore, choices B, C, and D are not as indicative of a developmental delay at 3 years old as the inability to copy a square.

3. What definitive diagnostic procedure does the nurse expect to be used to confirm the diagnosis of Hirschsprung disease in a 1-month-old infant?

• A. Colonoscopy
• B. Rectal biopsy
• C. Multiple saline enemas
• D. Fiberoptic nasoenteric tube

Correct answer: B

Rationale: Rectal biopsy is the definitive diagnostic procedure for Hirschsprung disease in infants. This procedure reveals the absence of ganglion cells in the affected bowel segment, which is a hallmark of Hirschsprung disease. Colonoscopy (Choice A) is not typically used for diagnosing Hirschsprung disease due to the risk of not accurately reaching the affected segment. Multiple saline enemas (Choice C) are not used to confirm the diagnosis of Hirschsprung disease. Fiberoptic nasoenteric tube (Choice D) is not a standard diagnostic procedure for Hirschsprung disease and does not provide the necessary information to confirm the absence of ganglion cells in the affected bowel segment.

4. An infant who has had diarrhea for 3 days is admitted in a lethargic state and is breathing rapidly. The parent states that the baby has been ingesting formula, although not as much as usual, and cannot understand the sudden change. What explanation should the nurse give the parent?

• A. Cellular metabolism is unstable in young children.
• B. The proportion of water in the body is less than in adults.
• C. Renal function is immature in children until they reach school age.
• D. The extracellular fluid requirement per unit of body weight is greater than in adults.

Correct answer: D

Rationale: The correct answer is D. Infants have a higher extracellular fluid requirement per unit of body weight, making them more susceptible to dehydration and electrolyte imbalances during illnesses such as diarrhea. Choice A is incorrect because cellular metabolism being unstable is not the primary explanation for the symptoms described. Choice B is incorrect as the proportion of water in the body alone does not fully explain the increased risk of dehydration in infants. Choice C is incorrect because while renal function is immature in children, it is not the most relevant factor in this scenario compared to the increased fluid requirements.

5. A child with a fever is prescribed acetaminophen. What should the nurse teach the parents about administering this medication?

• A. Administer the medication with food
• B. Measure the dose with a household spoon
• C. Measure the dose with a proper measuring device
• D. Administer the medication only when the child has a high fever

Correct answer: C

Rationale: The correct answer is to measure the dose with a proper measuring device. Using a proper measuring device ensures accurate dosing, which is crucial to avoid under or overdosing. Administering the medication with food (Choice A) is not necessary for acetaminophen. Using a household spoon (Choice B) can lead to inaccurate dosing due to variations in spoon sizes. Administering the medication only when the child has a high fever (Choice D) is not appropriate as acetaminophen can be used for fever management regardless of the fever intensity.

Similar Questions