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Question: From Chicago, Illinois, USA: I am 30 years old, was diagnosed with type 1 diabetes a year ago, and my control has been excellent with very little insulin (before breakfast: 3 units of Humalog and 8 units of NPH; dinner: 3 units of Humalog and 3 units of NPH). Recently, my non-fasting C-peptide was 3.6. How reliable is the C-Peptide test? Based on this information, how much, if any, insulin is my pancreas is producing? Answer: C-peptide represents a portion of the precursor hormone which is cleaved away as insulin is secreted. Therefore, a molecule of C-peptide represents a molecule of insulin secreted. It is a good test to evaluate residual insulin secretion. It is best interpreted with a simultaneous glucose to determine whether there is adequate insulin secretion for a given level of blood sugar. Your level clearly indicates you have residual insulin secretion left. Based on what you have told me, I cannot determine whether you have type 1 or type 2 diabetes. The small amount of insulin you are taking is consistent with type 1 diabetes, good insulin sensitivity, and residual insulin secretion. For patients with Late-onset Autoimmune Diabetes of Adulthood (LADA), the onset is more insidious with progressive beta cell loss. It is almost as if you are in a protracted honeymoon phase. Keep it up. The best way to prolong the honeymoon phase is to maintain the good blood sugar control. JTL DTQ-20010326213402 Original posting 6 Apr 2001 Posted to Blood Tests and Insulin Injections

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			Jump to a new section --[ Getting Around ]-- Home Page What's New Privacy Policy Search --[ 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 Advertise Awards Contribute Your Experiences Disclaimer Letters to the Editor Logos and Linking Share our Brochures

Last Updated: Tuesday April 06, 2010 15:09:19
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