Back to Ask the Diabetes Team Ask the Diabetes Team

From Monaca, Pennsylvania, USA:

My daughter just had blood work done for being overweight and for hepatitis-c (possible exposure). Her c-peptide (which I have no idea what they are) is 3.2 and her triglycerides are 199 (which I think is her fat intake). Can you help me understand these a little before I go to the doctor.


If your daughter is significantly overweight, her doctor is presumably concerned that she is already demonstrating some early evidence of Type 2 Diabetes. The C peptide level of 3.2 ng/ml is perfectly normal, the triglyceride level however, which is indeed a measure of fat in the blood, is significantly above the upper level of normal assuming though that she had been fasting for >12hours before the test was taken. C peptide is most often used as a measure of insulin production in someone who is also being given insulin for diabetes. High serum triglycerides are found in a number of disorders including the insulin resistance syndrome. It is often raised in Type 2 Diabetes as a result of insulin resistance. Neither C peptide not triglyceride levels are particularly good ways of distinguishing 'overweight' states from obesity and to define this you should ask the doctor to calculate the Body Mass Index (BMI) which is the body weight in Kg divided by the height in meters squared. I hope this will be of some help in discussing these results with the doctor.


Original posting 21 Jan 2004
Posted to Blood Tests and Insulin Injections and Weight and Weight Loss


  Back to Ask the Diabetes Team Return to the Top of This Page

Last Updated: Tuesday April 06, 2010 15:09:54
This Internet site provides information of a general nature and is designed for educational purposes only. If you have any concerns about your own health or the health of your child, you should always consult with a physician or other health care professional.

This site is published by T-1 Today, Inc. (d/b/a Children with Diabetes), a 501c3 not-for-profit organization, which is responsible for its contents. Our mission is to provide education and support to families living with type 1 diabetes.
By using this site, you agree to our Terms of Use, Legal Notice, and Privacy Policy.
© Children with Diabetes, Inc. 1995-2018. Comments and Feedback.