1. Your 9-month-old, 18-pound patient has accidentally overdosed on aspirin. Medical direction orders you to administer 1 g/kg of activated charcoal. On hand you have 50 g activated charcoal/250 mL. How many mL would you administer?
Answer: Since you are to administer 1 gram of activated charcoal per kilogram of body weight, you must convert 18 pounds to kilograms by dividing by 2.2 which tells you that the infant weighs 8.18 kg. Now since you have a solution of 50 grams of activated charcoal per 250 mL, you need to multiply the fraction (8.18/50) by 250 mL to get 40.9 mL of the solution administered to the infant.