How many milligrams should one dose for this child contain?

Question

Tetracycline Elixir, an antibiotic, is ordered for a child weighing 52 lbs. at a dosage of 8.0
mg per kilogram of body weight q.d. How many milligrams should one dose for this child
contain?

Answer 1

Elle, come now, all that you need is the conversion from lbs. to kg.

 

52 lb. (kg/2.2 lb) (8.0 mg) = 189 mg or 1.9x10² mg