Dr. orders C-Peptide test

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onthefence
Regular Member


Date Joined Apr 2011
Total Posts : 127
   Posted 2/28/2017 5:06 PM (GMT -7)   
My latest labs showed an a1c of 6.0 and fasting glucose of 93. Dr ordered a C-Peptide test in three months because I may be one of those rare birds to develop type 1 at the age of 72. Oh well.

Lanie G
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Date Joined Nov 2006
Total Posts : 6024
   Posted 2/28/2017 6:07 PM (GMT -7)   
Hello again! Well, the 6.0 is an average of 126 which is elevated. 93 fasting is what doctors are looking for because it's under 100 although a non-diabetic's fasting is usually in the 80's.

Why does the doctor think you're becoming a type 1? Do you have a blood sugar meter? Seems to me that if the doctor is concerned about your blood sugar that you would be testing yourself in the morning (fasting) and before and two hours after meals to see what's going on.

The C-peptide test will see how your pancreas is producing insulin. Here's a site which explains it all better than I can do:

/labtestsonline.org/understanding/analytes/c-peptide/tab/test/

In the meantime, check out the website whose link I have in my signature below.

What are you eating for meals?
Lanie

diabetes moderator
diabetes type 2 controlled by diet and exercise and
metformin
very low carb way of eating

Check out the following site for more info on blood sugar:
www.phlaunt.com/diabetes/

onthefence
Regular Member


Date Joined Apr 2011
Total Posts : 127
   Posted 3/1/2017 7:43 AM (GMT -7)   
I don't have a meter and don't test. The Dr ordered a C-Peptide test because I'm doing all the right things: BMI 19.7, 30 minutes a day on elliptical machine, carb intake rarely over 150g per day. My last insulin test showed insulin was 2 in range [4-13]. In my immediate family there is no history, but I have a first cousin with type 1 (developed in young adulthood) and other cousins with type 2.

Lanie G
Forum Moderator


Date Joined Nov 2006
Total Posts : 6024
   Posted 3/1/2017 12:24 PM (GMT -7)   
Fingers crossed for the test result! I commend your doctor for being on top of this, however! So many doctors just do basic tests and maybe write prescriptions. It's important to get to the bottom of this and I'm happy that you have a doctor who is proactive for you!

Keep us updated!
yeah
Lanie

diabetes moderator
diabetes type 2 controlled by diet and exercise and
metformin
very low carb way of eating

Check out the following site for more info on blood sugar:
www.phlaunt.com/diabetes/

onthefence
Regular Member


Date Joined Apr 2011
Total Posts : 127
   Posted 3/2/2017 8:16 AM (GMT -7)   
Thanks Lanie, the test is scheduled for May and I'll post the results when I get them.

Lanie G
Forum Moderator


Date Joined Nov 2006
Total Posts : 6024
   Posted 3/2/2017 8:51 AM (GMT -7)   
Great! Stay well and be healthy! Fingers crossed for no problems!
Lanie

diabetes moderator
diabetes type 2 controlled by diet and exercise and
metformin
very low carb way of eating

Check out the following site for more info on blood sugar:
www.phlaunt.com/diabetes/

onthefence
Regular Member


Date Joined Apr 2011
Total Posts : 127
   Posted 5/10/2017 4:49 PM (GMT -7)   
As promised I'm posting the results of my C-Peptide test, [...] indicates normal range.

(C-Peptide is produced in equal amounts as insulin but has a longer half-life.)

Fasting:
C-Peptide 1.1 [0.9-7.1]
Insulin <2 (Abn: L) [4-13]

C-Peptide is on the low end of the range, but insulin is way low at less than 2.

Dr. originally thought I was a candidate for type 1 but now suggests maybe I don't need to make much insulin (?).

Lanie G
Forum Moderator


Date Joined Nov 2006
Total Posts : 6024
   Posted 5/10/2017 4:58 PM (GMT -7)   
Hi and thanks for the update! Hmm. It would be really helpful for you to have a blood sugar meter and test yourself in the morning (fasting) and a couple of hours after eating.

The reason I'm asking is that the c-peptide result is low and that assumes you are not producing a lot of insulin which might mean the beginnings of being type 1, but unless you can say what your blood sugar levels are throughout the day (fasting, before eating and 2 hours after eating), it's difficult to really tell what's going on!
Lanie

diabetes moderator
diabetes type 2 controlled by diet and exercise and
metformin
very low carb way of eating

Check out the following site for more info on blood sugar:
www.phlaunt.com/diabetes/

onthefence
Regular Member


Date Joined Apr 2011
Total Posts : 127
   Posted 5/10/2017 7:33 PM (GMT -7)   
I'll bring it up at my next Dr. visit.

Lanie G
Forum Moderator


Date Joined Nov 2006
Total Posts : 6024
   Posted 5/10/2017 7:46 PM (GMT -7)   
Yes, I hope you do. Of course I'm not a doctor but why would your doctor have ordered the c-peptide test if he didn't suspect there might be a suspicion of low insulin production in the first place?

Insurance covers these meters and the testing strips with your doctor's prescription. You can even get a free meter directly from most manufacturer's if you request one from their website. However they only come with a small amount of test strips and that's where the cost is - having to buy the test strips. On the other hand, Walmart sells its own brand, ReliOn, and its test strips are not expensive at all. They have a pretty good rating. You don't need a prescription to buy meters or test strips.

In any case, I hope you're doing well otherwise!
Lanie

diabetes moderator
diabetes type 2 controlled by diet and exercise and
metformin
very low carb way of eating

Check out the following site for more info on blood sugar:
www.phlaunt.com/diabetes/

theHTreturns...
Elite Member


Date Joined Mar 2009
Total Posts : 20038
   Posted 5/12/2017 2:47 AM (GMT -7)   
depending on country, of-course!!! my test strips are reduced, but i am on a disability pension. going o/s and u pay, and thru the nose, learnt that when i lost my machine abroad!!! some countries it is dependent on dx. they recently changed the rules down under. u need to be testing and be dx with an insulin dependent dx for reduced strips and free needles. i know, american site. i got it. my time almost up here anyway.
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