Factors in Accuracy Studies Influencing Measured CGM Performance.

All patients will be fitted with the a CGM system, Dexcom G5 Mobile, patients receive an iv-catheter to sample venous blood. The samples will be arterialized using a heated-hand-box (arterialized-venous reference (YSI). Blood will be drawn for the determination of glucose concentrations using arterialized-venous sampling techniques per YSI.

All patients will be fitted with the a CGM system, Dexcom G5 Mobile, patients receive an iv-catheter to sample venous blood. Blood will be drawn for the determination of glucose concentrations using venous sampling techniques measured per YSI.

All patients will be fitted with the a CGM system, Dexcom G5 Mobile, patients receive vingerstick measurements to sample capillary blood measured per Self Monitoring of Blood Glucose (SMBG) device.