3.625 mL of Ibuprofen suspension would be administered to the 25 lb newborn
The child's weight is changed from pounds to kilograms.
1 pound equals 0.453592 kilogram
25 lb = 0.453592 x 16 = 7.25 kilogram
The amount of Ibuprofen the newborn needs in milligrams is;
7.25 kg x 10 mg/kg = 72.5 mg.
100 milligrams of ibuprofen are included in 5.0 mL of the solution.
There will be 72.5 mg in 72.5 mg * 5 mL/100 mg, which is 3.625 mL.
Therefore, 3.625 mL of Ibuprofen suspension would be administered to the 25 lb newborn.
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