× 0.2 = unit markings in a U-100 insulin syringe, dose (actual units) × 0.002 = volume (mL) in a tuberculin syringe. Dr. Segal at the Department of Pharmacy Practice, Massachusetts College of ...

A conversion factor was used to more ... For the vial and syringe group, if the number of units of insulin administered per patient was 1000 or less, this was equivalent to one vial.