EDTA improves stability of whole blood C-peptide and insulin to over 24 hours at room temperature.
McDonald, Timothy J.
O'Connor, John D.
Knight, Bea A.
Hattersley, Andrew T.
RightsArchived with thanks to PloS one
MetadataShow full item record
C-peptide and insulin measurements in blood provide useful information regarding endogenous insulin secretion. Conflicting evidence on sample stability and handling procedures continue to limit the widespread clinical use of these tests. We assessed the factors that altered the stability of insulin and C-peptide in blood.