C peptide

hello community

i have a friend that had a cpeptide done last wk and got her report back today,her lab report was .50.she ask me all kinds of question that i was not comfortable to talk to her about.can anyone tell me what does her lab value mean.i told her to talk with her endo for answers.but i think with a level of .50 she is making some insulin,am i right.also she was told that she's type 2 diabetic.

thanks to anyone with answers.

odessa