Question

Childrens chewable Tylenol contains 80.mg of acetaminophen per tablet. If the recommended dosage is 10 .mg/kg , calculate the number of tablets needed for a 70.-Ib child.

Answer 1

2.2 pounds in a kilogram.
70/2.2 = 31.818 kg of the child. 
10mg/kg and the tylenol is 80 mg per tables.
Child should take 318.18 mg divide that by per tablet 318.18/80 = 3.977 tablets. 
We are using 1 sig fig, so that would make our answer be 4 tablets.