Question 1082776
1 pound (lb) is equal to 0.45359237  kg
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[  23 pounds ] x [ kg/pound ] = [ kg ]
and
[ 5 mg/kg ]  x [ kg ] = [ dose in mg ]
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{{{ 23*.45359 = 10.43257 }}} kg
and
{{{ 5*10.43257 = 52.16285 }}} mg
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The usual dose for a 18 month 
old weighing 23 pounds is 52.163 mg