Question

You are to administer 150 mg of aminophylline from a bottle

marked 250 mg/10 mL. How many millilitres should you draw?

Answer 1

6mL is required.

Step-by-step explanation:

Using the unitary method, if there is 250mg of aminophylline in 10mL, then there is 1 mg in 10 ÷ 250 = 0.04 mL.

Then if we require 150 mg of aminophylline, we can multiply 0.04 mL by 150 mg = 6 mL.