Which formula represents the conversion from a child's weight to an appropriate medication dose?

The formula that is the most appropriate for converting a child's weight to an appropriate medication dose is based on the concept of using the adult dose as a reference point and adjusting it according to the child's weight. The formula involves dividing the child's weight in pounds by a standard weight, often estimated as 150 lbs, and then multiplying by the adult dose. This method reliably provides a pediatric dosage that reflects the child's body weight in relation to the standard adult dosing.

The formula "Child's Dose = (Child's Weight(lb) / 150) x Adult Dose" correctly calculates the child's dose by first establishing a ratio of the child's weight to the standard weight. By using this ratio, it effectively scales the adult dosage down proportionally based on the child's weight, ensuring a more accurate and safe dosing recommendation.

This proportional relationship is crucial because children metabolize medications differently than adults, so adjusting the medication dosage based on their weight helps to minimize the risk of underdosing or overdosing. Thus, option C accurately represents this calculation method for pediatric dosing.