• Guest - w'd love to know what you think about the forum! Take the 2025 Survey »

Got my c-peptide results

  • Thread starter Thread starter Anonymous
  • Start Date Start Date
A

Anonymous

Guest
Hello..

I got called by my GP today as my c-peptide results were in. He's not a diabetes expert, so wasn't really sure what the numbers mean when he rang me. The result was 0.15 nmol/L (nanomoles / litre).
He rang the hospital and then rang me back, because he thought that sounded rather low and he was told I should have had an insulin test at the same time - otherwise the c-peptide result isn't much use.

So I have to have the test again and this time they will do an insulin test at the same time.

In the meantime can anyone here give me any more info on that number or why they want to do the test again?

S
 
swimmer2 said:
In the meantime can anyone here give me any more info on that number or why they want to do the test again?
Click to expand...

I guess that'd be a "no" then.. :?
 
Sorry Swimmer saw your post but no idea about the number. Good look with the second test!
 
Sorry - was a bit excited to get the results and was hoping someone would jump in with "wow - 0.15 nmol/L - that definately means you're type 1.7 LADIDA" or something..
 
Hi there, if it's any help here's my results from the early days when the medics were still scratching their heads about what was going on.

Firstly, the disclaimer: I'm not a medical expert and please do not take my information below as diagnosis for your own condition.

My c-pep was 0.46 vs range of 0.36 -1.16, at the time I was told I was in normal range....so they went off to do some fancy genetic tests for MODY instead (both my parents are T2 so even though I didn't fit the typical T2 criteria, the medics just followed the genetic route...I was negative for 2 of the common MODY types)

About 6 months from that c-peptide result I was then tested for antibodies by an Anti-GAD test, as I was low carbing but my glucose readings would reach mid to high teens, sometimes in the 20s. I just felt iller and iller and people around me were commenting that I looked tired and losing weight. I was peeing/drinking water (but I was doing that for ages and just thought that was just part of me!).

The Anti-GAD was positive and I'm LADA/T1.5.

I think based on my initial c-pep being closer to the lower end than the middle, they could have save some money by doing an Anti-GAD then or I suppose in my case, it was a case of waiting for things to get a bit worse before a clearer diagnosis.

Anyway, so far based on my results, your C-pep is outwith the range. i.e your insulin production is low.

I don't know how they will test you for insulin seperately - I thought the c-pep WAS the insulin test.

I would suggest you ask for an Anti-GAD too. Although not all show positive for antibodies, it should be done along with a c-pep to determine if the Diabetes is autoimmune i.e T1 / T1.5 etc

Good luck.
 
Hi. I agree with Sanober. I thought the C-peptide test WAS the normal test for insulin as they track one another in the body. I'm not aware of an 'insulin' test as such that is commonly carried out? Yes, ask for a GAD test if your C-Peptide levels are showing too low
 
Back
Top