nurse or not a nurse

What kind of skills would you consider to be nursing skills? That is the question I ran into today. My coworker was told that she wasn't a real nurse, only a diabetic nurse. Whats the difference? From what I recall a diabetic nurse was a real nurse. BTW this was told to her by a CNA. Seriously, i don't think this guy realised that us diabetic nurses can stick a tube in any opening of your body and happily create more.And we wont even feel bad. Plus this is not something I would say to someone who is about ready to handle sharp needles. This guy need a sign. DUMBASS