Question

Question #5582f

Answer 1

Since you're asked for the body weight in pounds, you have two ways of solving this problem.

You can either calculate the body weight in kilograms first, and then use a unit conversion to go to pounds, or you can calculate the dosage in `"mg/lbs"` and then multiply by the amount of medication given to the patient.

`3.00 "mg"/"kg" * ("1 kg")/("2.2046 lbs") = "1.36 mg/lbs"`

Now multiply the amount given to determine the body weight

`"245 mg" * ("1 lbs")/("1.36 mg") = "180. lbs"`

Or, like I've said, you can go from kg to lbs at the end

`"245 mg" * ("1 kg")/("3.00 mg") = "81.67 kg"`

`"81.67 kg" * ("1 lbs")/("0.45359 kg") = "180. lbs"`

The results are rounded to three sig figs.