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The Question
Tue Mar 27 11:58:04 EDT 2012

Insulin test
Asked By: bernadette2  
Category: Insulin

Background Info Hide
Thank you Liz for getting back to me so quickly. I am anxious to get my tests results back to see if I have improved, especially the HGB and kidney function. I would very much like to request an insulin test be done so I know exactly how much insulin is in my body. What benefit would that give me?
Diabetes Profile Hide
n/a
Expert Answers (1)
2012-03-28 17:54:18.0

Hello,

Thanks for the follow-up question.

Measured by a blood test, C-peptide level indicates how much insulin is released from the beta islet cells of the pancreas. C-peptide is released in equal amounts to the amount of natural endogenous (internal source) insulin. Bottled insulin does not contain C-peptide and using it suppresses natural insulin release.

There are some evidence that suggests early insulin treatment may keep beta cells producing insulin, at least for a while longer.

The normal fasting range of C-peptide is between 0.78 - 1.89 ng/ml (0.26 - 0.62 nmol/L SI unit). Lab standards may vary. A low C-peptide level suggests LADA (Latent Autoimmune Diabetes in Adults), also called type 1.5 diabetes.

C-peptide levels change continually in relation to a blood glucose load. After eating, the blood glucose level increases. Insulin would normally respond to bring the blood glucose level down. There would be a higher level of C-peptide in the blood.

What is the benefit of the C-peptide test?

  • It can serve as a basis for comparison. What changes occur in insulin release over time?
  • Insurance providers routinely use C-peptide testing to determine if a patient qualifies to receive coverage for insulin pump therapy.

    Here is another discussion on managing LADA!

    Take care.

  • Answered By: Liz Quintana
    Accreditations: EdD, RD, LD, CDE
    Sources Show

    Community Answers (1)
    2012-11-15 17:28:37.0

    test form rupal
    Answered By: apazidis

    Sources Show


     

    *** All information contained on dLife.com is intended for informational and educational purposes only. Our Expert Q&A is not intended to be a replacement or substitute for consultation with a qualified medical professional or for professional medical advice related to diabetes or another medical condition. Please contact your physician or medical professional with any questions and concerns about your medical condition.

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