was dx diabetic but confused T1 or T2 ???

[knight191]

I'm 24 yrs old and very thin. I was diagnosed T2 for 2 yrs ago. I took oral med (Daonil and Metformin) during 2 yrs but my BS in the morning are 170-300 and last month A1c is 11%. Now my new dr. take me on Bolus Basal insulin so I can control my FBS. the dr. gave me only C-peptide test to know if there is insulin or not.

I'd like to know why I never be coma or vomit or go to ICU? if i'm T1 in past 2 yrs without control BS.

However, if i'm T2 why i'm so thin and oral med not work and have to use insulin very soon?

Could you pls tell me which type, 1 or 2 ??

Thanks

 

[timo2]

Hello knight191,

There is always the possibility that you have type 1.5 diabetes, also known as slow onset
type 1 or LADA (latent autoimmune diabetes in adults). Compared to the majority of type 2's,
type 1.5's are far more likely to be slim and physically fit. Type 1.5's will often lack the other
signs associated with type 2 diabetes, such as high triglycerides, low HDL cholesterol or high
blood pressure.

Because insulin resistance is low or non-existant in a type 1.5, the type 2 oral medication used
to reduce insulin resistance won't help. However, other medication used to stimulate insulin
production, slow the digestion of carbohydrate or reduce excess glucose production by the liver
will often help, at least for a few years.

On average, 50% of type 1.5's need insulin within four years of diagnosis (compared to over
ten years in type 2's).

All the best,
timo.

 

[knight191]

I had taken medical for stimulate insulin for 2 yrs but not good for me

Now, My C-peptide after drinking isocal for 2 hrs result is 1.01 (if lower than 0.6 is T1)

What does it mean? Thanks

 

[timo2]

Hello knight191,

Approximately 1.2 to 3.4 ng/ml is considered the normal range for C-peptide at two hours postprandial (after a meal).

Type 2's with insulin resistance(and reasonable beta-cell function) will often have a higher reading. Lower end values may indicate the honeymoon phase of type 1, when insulin production is slowing down but has not yet stopped completely.

Insulin treatment will usually be considered for people with levels at or below 1.0 ng/ml.

Regards,
timo.

 

[DiabeticGeek]

Do you know if you have been given a GAD antibody test? If it is LADA (which is possible with this level of C-Peptide) then that is usually the best way to diagnose it. Are you seeing a diabetes specialist or a GP? If there is a possibility that you have something relatively unusual like LADA, then it would probably be good idea to talk to a specialist (LADA is notoriously easy to mis-diagnose).

 

[knight191]

Never been tested Anti GAD but I think I have to use basal bolus insulin ,so do i need to know what type i am?