Answer: C. 2,272 mg
Step-by-step explanation:
Given : The recommended dose of a particular drug is 0.1 g/kg.
We know that 1 kilogram is equals to approximately 2.20 pounds.
Then ,[tex]\text{1 pound}=\dfrac{1}{2.20}\text{ kilogram}[/tex]
[tex]\Rightarrow\text{50 pounds}=\dfrac{1}{2.20}\times50\approx22.72text{ kilogram}[/tex]
Now, the dose of drug should be given to a 22.72 kilogram patient is given by :-
[tex]22.72\times0.1=2.272g[/tex]
Since 1 grams = 1000 milligrams
[tex]2.272\text{ g}=2,272\text{ mg}[/tex]
Hence , 2,272 mg of the drug should be given to a 50 lb. patient.