there are several ways you can get too much insulin in your system: you inject too much insulin because you have difficulty reading the syringes or vials or are unfamiliar with a new product. you inject the right amount of insulin but the wrong type. for instance you normally take 30 units of long-acting and 10 units of short-acting insulin. injecting 30 units of short acting insulin is an easy mistake to make. you inject insulin but then didn't eat. insulin injections should be timed with meals. blood sugar rises after meals but without eating insulin lowers blood sugar levels to a potentially dangerous level.
what are the most common causes of insulin overdose?