The IV Dosage Calculator computes the dosage based on the prescribed dose and the concentration of drug on hand.
INSTRUCTIONS: Enter the following:
- (D) Desired Dose in Units
- (H) Units per Volume on Hand
- (V) Base Volume of Drug on Hand
IV Dosage (X): The calculator returns the push amount in millilitres (mL). However this can be automatically converted to compatible units via the pull down menu.
The Math / Science
The IV Dosage Formula uses the desired dosage amount and amount of the drug on hand to calculate the amount of dosage that should be administered to a patient's IV. The formula for IV Dosage is:
X = D/H * V
Where:
- X = Amount to be administered
- D = Desired dose
- H = Amount of drug on hand
- V = Volume of drug on hand
Example
A doctor prescribes 2,500 units of heparin via IV. Heparin is available in concentration of 10,000 units per millilitre (10,000 u / 1 mL). In this case, the desired dose (D) is 2,500, the Amount of Drug on hand (H) is 10,000, and Volume (V) is 1 mL.
X = 2,500/10,000 * 1mL = .25 mL
