Figure 2.

A continuous glucose monitor was inserted into the thigh of a hospitalized patient with type 2 diabetes managed with subcutaneous insulin. A CGMS iPro Recorder (Medtronic Diabetes, Northridge, CA) measured and recorded the concentration of interstitial fluid glucose every 5 minutes. Sensor output current (thin line) was calibrated to POC measurements from an Accu-Chek Inform meter (solid circles) and the hospital laboratory (solid squares) to produce an estimate of blood glucose (thick line). Recurrent hypoglycemia was recorded twice over the 72-hour study period.