A. Ideal body weight is recommended for pediatric medication dosing because most medications used in resuscitation are distributed through the total body water (TBW) rather than the fat. A 30 kg two year old whose ideal body weight is 15 kg would best be treated by basing medications on a 15 kg weight (Ideal body weight). PALS recommends using ideal body weight for resuscitation as well. Drugs that are distributed through the body fat should be based on actual body weight (ABW). Examples of drugs distributed through fat are amiodarone and succinylcholine.