View Full Version : First Calibration error
Kaylee's Mommy
11-28-2007, 02:06 AM
I figured I'd get it because the sensor said 150 and I got 250.. I didn't think K had washed her hands after the 2 juiceboxes and 2 pbcrackers so I took her into the br and washed em' for her.. got 270 this time.. so did a correction, and calibrated it because it was asking for it..and once I finished that the sensor said 130 with 2 arrows down.. and I got a cal error.. so rechecked and got 230..so recalibrated.. how long does it take to show up in history.. wondering if its going to accept this one.. Isig is good.. at 23something.. but I'm wondering if the sensor is going on its way out.. its been off more than usual today.. but we've had a crazy day number wise..
Lindy
11-28-2007, 07:42 AM
yep - I'd say the sensos is done. usually when I get the arrows that make no sense - that sensor's life is over!! i think you got about 7 or 8 days right? that's right about what we get - unless it's in the arm then we typically get 9 to 10days..
WestinsMom
11-28-2007, 10:15 AM
That is exactly how ours tend to die too. Good job! You lasted longer than us. :)
Mama2H
11-28-2007, 12:17 PM
On occasion we have this happen and I can save the sensor by pretending to start a new one. Usually if we have an isig that good and up until that point it had been trending well we can trace it back to a bad calibration earlier in the day. Sometimes it won't work and others it will.
rickst29
11-28-2007, 04:06 PM
When it's THAT whacked but the ISIG is still high (I'm guessing that 23 at 230 mg/dL would be well above 7 at normal bG), odds are pretty good that it can still perform for a couple more days. The best thing to do is restart-- throw away all the messed up data and assumptions, make it start over from scratch.
Minimed's calibration process "remembers" the old data during each 3 day period, and it refuses to make a lot of really big adjustments when it "thinks" that the new calibration is in horrible disagreement with the old data. It sounds like your in the later half of a 3-day period, so you need a Restart to get rid of all that "old" stuff. After Restart, it uses only the brand new calibration data to set the calibration curve (line).