How many mL are needed for 1.5 mg of a drug if the concentration is 0.5 mg/mL?

To determine the volume in milliliters needed to administer a specific dose of a medication, you can use the formula:

Volume (mL) = Dose (mg) ÷ Concentration (mg/mL).

In this case, the dose required is 1.5 mg, and the concentration of the drug is 0.5 mg/mL. Plugging these values into the formula gives you:

Volume = 1.5 mg ÷ 0.5 mg/mL = 3 mL.

This calculation shows that to obtain 1.5 mg of the drug, you would need 3 mL of the solution at the given concentration. Knowing how to perform these calculations is crucial in medication administration to ensure the correct dosage is provided to patients.