If a prescribed drug dosage is 500 mg and it is available as 200 mg/5ml, how many teaspoonfuls are needed for the correct dosage?

To determine the correct dosage in teaspoonfuls, we first need to convert the prescribed drug dosage from milligrams to milliliters using the available concentration of the drug. The drug is available as 200 mg per 5 ml.

1. Calculate the amount of drug per 1 ml:

• If there are 200 mg in 5 ml, then in 1 ml, there are 200 mg / 5 ml = 40 mg/ml.

2. To find out how many milliliters are needed to achieve the prescribed dose of 500 mg:

• Divide the desired dosage (500 mg) by the concentration (40 mg/ml):

• 500 mg / 40 mg/ml = 12.5 ml.

3. Now, convert milliliters to teaspoonfuls. It's important to remember that 1 teaspoon is approximately equal to 5 ml.

• To convert 12.5 ml to teaspoonfuls, divide by 5 ml/teaspoon:

• 12.5 ml ÷ 5 ml/teaspoon = 2.5 teaspoonfuls.

Thus, the correct answer is that 2.5 teaspoonfuls are needed to administer the correct dosage of