A toddler weighing 22 lb with hemophilia A fell down several steps and sustained a knee injury. The parents have been instructed to provide the child with an infusion of factor VIII concentrate, one bag per 5 kg of body weight. How many bags of the concentrate will the parents infuse into the child? (Calculate to the nearest tenth decimal point.)

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First, determine the child's weight in kilogram by dividing 22 lb by 2.2 = 10 kg. If the parents are to infuse one bag of concentrate for every 5 kg of body weight then divide the total body weight by 5 or 10 kg/5 = 2. The child is to receive 2 bags of factor VIII to treat this injury.

A Toddler Weighing 22 Lb with Hemophilia a Fell Down