What formula provides a more accurate calculation for converting an adult dose to a child's dose based on body surface area?

The formula that accurately calculates a child's dose based on body surface area (BSA) is the one that uses the child's BSA in relation to the standard adult BSA of 1.73 m². This standard is widely accepted in clinical pharmacology, as BSA has been shown to be a more reliable indicator for drug dosing than weight alone, especially in pediatric patients who may have different physiological responses to medications compared to adults.

Using the formula that expresses the child's body surface area in relation to the standard measurement allows for precise adjustments that reflect the child’s actual size. By dividing the child’s BSA by 1.73 and then multiplying by the adult dose, this method accounts for the differences in metabolism and how the body processes medications, leading to a dosage that is better tailored to the child's needs.

Formulating dosages based predominantly on weight may not consider these crucial aspects, which is why other options that utilize weight may not provide the same level of accuracy. BSA-based calculations help to minimize the risk of underdosing or overdosing, ensuring safer and more effective treatment for children.