C-peptide is a peptide that is made when proinsulin is split into insulin and C-peptide.
C-peptide is generally found in amounts equal to insulin.
A C-peptide test can be done when diabetes has just been diagnosed and it is not clear whether type 1 diabetes or type 2 diabetes is present or to help find the cause of low blood sugar (hypoglycaemia), such as excessive use of medicine to treat diabetes or a noncancerous growth (tumor) in the pancreas (insulinoma).
We will send you your C Peptide blood test sample collection kit together with the details of a convenient clinic where you can go and have your sample taken.
Your C Peptide test includes 1st class postage and packaging for you to send your blood sample directly to our laboratory for analysis. If you live in an area where you cannot rely on the post or you simply want to ensure that your sample arrives at the laboratory the following day, you may wish to send your blood sample guaranteed next day delivery for extra reassurance.