C-Peptide

How To Prepare

Do not eat or drink for 8 hours before your blood test.

Insulin and some oral medicines used to treat type 2 diabetes can change the test results. Your health professional may ask you to stop these medicines before your blood test.

Talk to your doctor about any concerns you have regarding the need for the test, its risks, how it will be done, or what the results will mean. To help you understand the importance of this test, fill out the medical test information form(What is a PDF document?).

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Author:	Jan Nissl, RN, BS	Last Updated: August 21, 2006
Medical Review:	Caroline S. Rhoads, MD - Internal Medicine Alan C. Dalkin, MD - Endocrinology
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