D Determine drug dosage by patient s weight For each kilograms of a person s weight 15 milligrams of a drug is to be given What dosage should be given to a person who weighs 240 pounds Use 1 pound 0 45 kg Multiply by 10 for each step to the right x 10 km hm dam m dm cm mm Divide by 10 for each step to the left 1 1 620 mg 2 8 000 mg 3 26 67 mg 4 3 600 mg 10