How to Calculate Liquid Medication Dosage Using a Common Formula
Learn the simple formula for calculating liquid medication doses accurately using Desired Dose, Stock Dose, and Stock Volume.
Video transcript
A common formula for calculating liquid medications is: (Desired Dose / Stock Dose) x Stock Volume. Desired Dose is the amount prescribed, Stock Dose is the concentration of the medication, and Stock Volume is the volume containing the stock dose. For example, if you need 250 mg of a medicine with a stock dose of 500 mg/5 mL, the formula would be (250 mg / 500 mg) x 5 mL = 2.5 mL.
Questions and answers
What is the formula to calculate liquid medication dosage?
The formula is (Desired Dose ÷ Stock Dose) × Stock Volume, where Desired Dose is what is prescribed, Stock Dose is the medication concentration, and Stock Volume is the volume that contains the stock dose.
How do I determine the correct volume of liquid medicine to administer?
Use the formula (Desired Dose ÷ Stock Dose) × Stock Volume to calculate the exact volume required for the prescribed dose.
What does Stock Dose mean in medication calculations?
Stock Dose refers to the concentration or amount of medication contained in a specific volume of the liquid stock solution.
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