Question

3. You are to give chlorpromazine 0.075grams from a bottle labeled “Chlorpromazine 25 mg per ml”. How much

solution will you use:

​

Answer 1

3 ml

Explanation:

We must first convert 0.075grams to milligrams

Now;

1000 milligrams = 1 gram

x milligrams = 0.075grams

x = 1000 milligrams * 0.075grams/1 gram

x = 75 milligrams

According to the question;

1 ml contains 25 mg of Chlorpromazine

x ml contains 75 mg of Chlorpromazine

x = 75 mg * 1 ml/25 mg

x = 3 ml