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Question: From Lyndhurst, New Jersey, USA: My son was diagnosed with type 1 diabetes about a year and one-half ago, and has a C-peptide test done at his three-month visits. His non-fasting values range from 1.6 to 1.8 Can you please tell me the reason for a a C-peptide? What does the test determine? Does this mean he is still in his honeymoon period? Answer: Once someone has started on insulin nowadays, it is nearly always human insulin. This means that if you measure insulin levels in the blood you cant tell if it is insulin that is still being made in a child's own islet cells or whether it is injected insulin. The way around this is to do a C-peptide test, which is a fragment of the precursor to insulin (proinsulin) that the body makes and is split off before the insulin itself is secreted. There is none of this peptide in commercial insulin preparations so that it a way of assessing whether the honeymoon period is continuing. DOB DTQ-20010324102602 Original posting 2 Apr 2001 Posted to Blood Tests and Insulin Injections and Honeymoon

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			Jump to a new section --[ Getting Around ]-- Home Page What's New Guide to CWD Help with Error Messages Index Privacy Policy Search Site Map --[ People ]-- Family Support Network Adults with Diabetes Care Photos Chat Rooms Conferences Kids with Diabetes Parents Parent Humor Scholarships and Financial Aid Grandparents Humorous Tidbits Jobs Mailing Lists CWD Forums Poetry and Art Videos Polls Quilt for Life Surveys Blogs --[ Clinic ]-- Ask the Diabetes Team Alternate Site Testing Alternative Treatments Care Suggestions CWD Español Diabetes Basics Diabetes at School 504 Plans Diabetes Camps Diabetes Dictionary Insulin Pumps Nutrition Podcasts Presentations Products Product Marketplace Sports Studies Warning Signs --[ Sources ]-- News and Information Diabetes Advocacy Links to Other Web Sites Press Releases Regional Information Services Support Groups --[ Feedback ]-- About CWD Get CWD Products Advertise Awards Contribute Your Experiences Disclaimer Letters to the Editor Logos and Linking Share our Brochures

Last Updated: Sun Jan 15 12:18:27 2006
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