Laboratory calculator
Ovagen Units Chart (20 mg vial)
Worked example
Worked example: a 20 mg vial of Ovagen with 2 mL of water has a concentration of 10 mg/mL, so a 250 mcg example amount reads 2.5 units and 500 mcg reads 5 units on a U-100 syringe. With 5 mL the same 250 mcg reads 6.25 units.
Units chart
| Water added (mL) | Concentration (mg/mL) | Units on a U-100 syringe, by target amount (mcg) | |||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
| 50 | 100 | 250 | 500 | 750 | 1000 | 1500 | 2000 | 2500 | 5000 | ||
| 1 | 20 | 0.3 | 0.5 | 1.3 | 2.5 | 3.8 | 5 | 7.5 | 10 | 12.5 | 25 |
| 2 | 10 | 0.5 | 1 | 2.5 | 5 | 7.5 | 10 | 15 | 20 | 25 | 50 |
| 3 | 6.6667 | 0.8 | 1.5 | 3.8 | 7.5 | 11.3 | 15 | 22.5 | 30 | 37.5 | 75 |
| 5 | 4 | 1.3 | 2.5 | 6.3 | 12.5 | 18.8 | 25 | 37.5 | 50 | 62.5 | 125 |
How it works
Each cell is units = target amount in mg / concentration x 100, where concentration = vial mass / water volume. For 20 mg in 2 mL the concentration is 10 mg/mL, so a 250 mcg example amount is 0.25 / 10 x 100 = 2.5 units.
Frequently asked questions
What does a 250 mcg example amount of Ovagen read on a U-100 syringe for a 20 mg vial?
It depends on the water volume: 1.25 units with 1 mL, 2.5 with 2 mL, 3.75 with 3 mL and 6.25 with 5 mL in a 20 mg vial.
Why do the chart rows differ for the same 20 mg of Ovagen?
More water lowers the concentration, from 20 mg/mL at 1 mL to 4 mg/mL at 5 mL, so the same target amount occupies more volume and reads more units.
How many mcg of Ovagen does one syringe unit hold in this vial?
One unit is 0.01 mL. At 10 mg/mL (the 2 mL row) one unit holds 100 mcg of Ovagen.
Available from Pepcore
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