Correct Answer: D

Rationale: The correct answer is D because infants' kidneys are less developed compared to older children, making them less efficient at concentrating urine. This results in a lower specific gravity in infants. The other choices do not directly explain why the specific gravity is lower in infants.

Correct Answer: B

Rationale: A sodium level of 140 mEq/L within the expected reference range indicates effective treatment for dehydration. In dehydration, sodium levels are often elevated, so a normal sodium level suggests that the treatment is helping to restore the electrolyte balance in the infant's body.

Correct Answer: A

Rationale: Pizza with a fruit plate is the most suitable choice for a 6-year-old child with hypokalemia due to its potassium content. Potassium-rich foods like fruits can help replenish potassium levels in the body, aiding in the treatment of hypokalemia.

Correct Answer: D

Rationale: Early intervention services aim to support a diverse group of children and families without the need for a specific diagnosis. These services are inclusive and provided to all eligible children and families, regardless of their background or particular condition.

Correct Answer: A

Rationale: Placing the newborn on a radiant warmer is appropriate as it helps maintain the body temperature and prevent hypothermia in a newborn with an omphalocele defect. This is crucial for the infant's well-being and supports their physiological stability.