@A DiabetesTeam Member I would suggest that when the tests are all done she will "likely" be diagnosed with L.A.D.A. which stands for Latent Auto-immune Diabetes in Adults
Type 1 diabetes is caused by upto (6) different anti-bodies that attack the pancreas.
Onset is super fast (days) and it generally strikes children in the 6-8, 13-16 age range - one day they are fine the next in hospital on insulin drip
LADA occurs in young adults (mostly) under age 35
It's onset is slow - months or years because it is only 1 anti-body that is doing the damage (glutamic acid decarboxylase anti-body) and is confirmed with a GAD or GADA "test"
Initially the (patient) can be treated with Type 2 medications until "full onset" at which time they switch to Type 1 treatment
LADA was previously called Type 1.5 because it started like one and ended as the other but it never was a Type 2 progressing to Type 1 but rather it's own unique Type of Diabetes
It was only discovered/isolated in 1993 and actually the UK has been on the leading edge of figuring it out, so if she is living there and is diagnosed with LADA she will get the best care currently available at least from a knowledge/understanding of the disease (which is still limited)
It is my daughter in the UK. They think she is a type 1 diabetic. I never had her tested as a child. She got diabetes two years ago and was on tablets
Insulin for ANY age Type 1
Type 1 is an auto-immune disease that onsets within "days" and immediately need insulin - no other treatment ever
Basil for overnight
Bolus before meals and to correct if you ate too many carbs
or a Basil/Bolus mix in various formula's 70/30 or 75/25 etc