(answer key below) Reading a 100 unit Insulin Syringe This is a 100 unit insulin syringe Each line measures in 2 increments until it reaches a total capacity of 100 units. On a 1 mL syringe, the longer lines are marked with numbers for each 01 mL The short lines measure 002 mL (002, 004, 006, 008) Example 024 mL Fill a 1 mL syringe with medicine until the top of the plunger is at the 024 line 39 Related Question Answers Found. How much is 02 ml in a syringe?.