A powdered medication is reconstituted with 20 mL of sterile water, resulting in a concentration of 100 mg/mL. The order is to administer 300 mg. How many milliliters will you give?

Step 1: Identify the formula to calculate volume Volume (mL) = Ordered dose (mg) ÷ Concentration (mg/mL) Step 2: Identify values Ordered dose = 300 mg Concentration = 100 mg/mL Step 3: Plug in the values Volume = 300 ÷ 100 = 3 mL