Nursing Elites

1. What factor predisposes an infant to fluid imbalances?

• A. Decreased surface area
• B. Lower metabolic rate
• C. Immature kidney functioning
• D. Decreased daily exchange of extracellular fluid

Correct answer: C

Rationale: Infants have immature kidneys that are less efficient at concentrating urine, making them more susceptible to fluid imbalances. Their higher surface area to volume ratio also contributes to greater insensible fluid losses.

2. Which electrolyte imbalance is a common concern in children with severe diarrhea?

• A. Hypernatremia
• B. Hypokalemia
• C. Hypercalcemia
• D. Hypomagnesemia

Correct answer: B

Rationale: Hypokalemia is the correct answer because it is a common concern in children with severe diarrhea. Diarrhea can lead to significant potassium loss, resulting in hypokalemia. Hypernatremia (Choice A) is less common in diarrhea as sodium concentration is usually diluted by the fluid loss. Hypercalcemia (Choice C) is not typically associated with severe diarrhea. Hypomagnesemia (Choice D) can occur but is not as common as hypokalemia in this scenario.

3. By what age does birth weight usually triple?

• A. 1 year
• B. 1 month
• C. 2 years
• D. 6 months

Correct answer: A

Rationale: The correct answer is A: 1 year. By the age of 1 year, a baby’s birth weight typically triples. This period allows for significant growth and development in infants. Choices B, C, and D are incorrect because birth weight does not usually triple by 1 month, 2 years, or 6 months of age, respectively.

4. An infant, age 5 months, is brought to the clinic by his parents for a well-baby checkup. What is the best advice that the nurse should include at this time about injury prevention?

• A. Keep buttons, beads, and other small objects out of his reach.
• B. Do not permit him to chew paint from window ledges because he might absorb too much lead.
• C. When he learns to roll over, you must supervise him whenever he is on a surface from which he might fall.
• D. Lock the crib sides securely because he may stand and lean against them and fall out of bed.

Correct answer: A

Rationale: Small objects are a choking hazard for infants, so it is crucial to keep them out of reach to prevent injury.

5. What measure of fluid balance status is most useful in a child with acute glomerulonephritis?

• A. Proteinuria
• B. Daily weight
• C. Specific gravity
• D. Intake and output

Correct answer: B

Rationale: Daily weight is the most accurate measure of fluid balance in children with acute glomerulonephritis, as it reflects changes in body fluid status more reliably than other measures like proteinuria or specific gravity.

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