Final answer:
To administer 100 mg of a drug at a concentration of 25 mg/mL intravenously, we calculate that 4 mL of the drug is needed.
Step-by-step explanation:
To find the total number of milliliters needed for a 100 mg dose of a drug with a concentration of 25 mg/mL, we can set up a simple calculation. This is a dosage calculation problem, which is commonly performed by healthcare professionals.
First, you need to know how many milligrams are in each milliliter, which is given as 25 mg/ml. Since you need a total of 100 mg, you can calculate the volume needed by dividing the total mass of the drug needed by the concentration of the drug.
Here's the calculation step-by-step:
Determine the total mass of the drug needed: 100 mg.
Identify the concentration of the drug: 25 mg/mL.
Divide the total mass (step 1) by the concentration (step 2) to find the volume: 100 mg ÷ 25 mg/mL = 4 mL.
Therefore, you will administer 4 mL of the drug intravenously.