Correct Answer: A

Rationale: The correct answer is A: 60 mL/hour. The total volume to be infused is 30 mL over 30 minutes. To calculate the infusion rate in mL/hour, divide the total volume by the total time in hours. In this case, 30 mL / 0.5 hours = 60 mL/hour. Choice B, 45 mL/hour, is incorrect as it does not correspond to the calculated infusion rate. Choices C and D, 30 mL/hour and 15 mL/hour respectively, are also incorrect based on the calculation.

Correct Answer: C

Rationale: For school-aged children, pedestrian, motor vehicle, and bike safety are critical areas to focus on as accidents involving these are common in this age group. Education about fire safety and toxic substances is also important, but the priority is on preventing accidents in everyday activities. Therefore, choices A, B, and D are not the most relevant for addressing the goal of decreasing injuries and accidents in this age group.

Correct Answer: D

Rationale: Cutting hot dogs into small, irregular pieces reduces the risk of aspiration, which is a significant choking hazard for young children.

Correct Answer: B

Rationale: The correct answer is B. School-age children are typically able to play structured games with other children and follow the rules of the game. This ability reflects their growing cognitive and social development. Choice A is incorrect as school-age children often engage in group play. Choice C is incorrect as school-age children usually have more autonomy in their play choices. Choice D is incorrect as school-age children tend to form more organized play settings rather than loose groups.

Correct Answer: B

Rationale: A neonate normally loses about 10% of the birth weight by age 3 to 4 days. The birth weight is usually regained by the 10th day of life. In this case, the weight loss from 3400 g to 3147 g is within the expected range. Therefore, the most appropriate action is to explain to the mother that this weight loss is within normal limits. Choice A is incorrect because supplemental feedings of formula are not indicated for this expected weight loss in a breastfed newborn. Choice C is incorrect as there is no evidence to suggest excessive weight loss at this point. Choice D is unnecessary at this stage and may not align with the current situation of normal weight loss post-birth.