Is confusion over whether you are type 1.5 or type 2 impacting on your care or treatment?
I think
@phoenix 's reply in your previous thread is as close to an answer as you are going to get -
http://reading-well.org.uk/books/books-on-prescription/common-mental-health-conditions
Unfortunately, there is no one test that gives you an answer as to what type of diabetic you are. Tests you can have include:
- GAD test - if you have GAD antibodies you are definitely in the type 1 family (so I'm including type 1/1.5/LADA here). However, if you are GAD negative that doesn't mean you aren't type 1, something like 30%of type 1s don't have GAD antibodies...
- C-peptide tests - if you have c-peptide that means you are producing some of your own insulin. However, honeymooning type 1s will still be producing some endogenous insulin (cos that's the point of the honeymoon) and some type 2s make no c-peptide because they are no longer making any insulin - so a c-peptide test doesn't tell you what type you are.
- genetic testing for MODY
- other antibody tests can be done, but I'm really not sure how worthwhile they are as a diagnostic test or how available the tests actually are -
http://www.diabetesandenvironment.org/home/mech/autoimmunity
So I think they differentiate between types by looking at all of the tests, and your clinical presentation (in particular presentation on diagnosis - were you losing weight and in DKA or overweight and older - and how your blood sugar levels/HbA1C are doing / what treatment is required for this - are you keeping your blood sugar down with diet and exercise or are you on insulin).
I'm afraid it just isn't clear cut.