Hi everyone, If you've read my few posts, you know I saw an endo last week who wanted to test me for antibodies b/c I seemed to fit the LADA profile moreso than T2 (underweight, 40 yrs. old, family and personal history of autoimmune disease, normal BP/cholesterol).... WELL, the antibody tests came back negative. She tested GAD, ICA, and IA-2A--all negative. GAD <1.0 (0.0-1.5), IA-2A .8 (<1.0), ICA Negative (Negative: <1:1). My FBG the morning of the test was 85. It was higher when I woke up (110), but I didn't get to the lab until I was up for 2 hrs. (Does that matter?). My c-peptide was 1.6 (range 1.1-4.4) and my insulin was 3.4 (range 2.6-24.9). Do my c-peptide and insulin levels seem on the low side?
I just can't believe that I'm early pre-diabetic for T2 with my particular profile, but I guess if there are no antibodies, that's just what it is.
Thanks for all your input and support these last few weeks! :)
EDIT: I spoke with my endo this afternoon, after I saw the lower C-peptide number (she had just left a voicemail this morning saying the antibody tests were negative and emailed the results to me). She said she has not ruled out Type 1 yet. I mentioned the 10% of T1s who don't test positive on the 3 antibody tests I had done and she said Why don't we go ahead and test you for zinc transporter (ZnT8) and IAA? (I know--I'm very lucky with this endo!). So, back to the lab tomorrow! She said it may also be that I'm not showing antibodies yet b/c it's so early. I thought once you started having abnormal BG, and it was T1, that you'd show antibodies at that time?
If the ZnT8 and IAA come back negative, I wonder if I should ask for the OGTT?? She hasn't even mentioned that yet.