I met the loveliest woman at the Minimed REAL-Time Pump and CGM training on Monday and we have been e-mailing each other about our experiences with this thing. Since we put on the sensors at the doctors office on Monday we have both experienced a some really wide ranges between finger sticks and the readings on the CGM. For instance I tested 261 and the CGM said 140. I even did a correction for the 261 and I saw no change on the CGM.
She had the same issue, finger test 227, CGM 147 with two down arrows even. She reported two Cal Errors and a Bad Sensor yesterday, so she switched out everything feeling a little frustrated that the sensor only lasted three days. Today she was working out (with new sensor) and the CGM kept giving her LOW alarms showing a blood sugar of 40 for an hour. She tested every ten minutes while this was happening and got finger test readings of 140-240. What gives?
Today is sensor day four for me and I got two Cal Errors and a Bad Sensor. I wonder if we have a bad batch of sensors?