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← Return to CGM vs Finger Stick
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Diabetes & Endocrine System | Last Active: May 25 6:02pm | Replies (17)
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@matt2024 I’m not sure I understand your calibrating technique “one thing that I have learned is that if you are off by too much - don’t try to calibrate the difference all at once. I usually halve the difference over a few hours and that seems to help dial it in without errors”. My Dexcom app says to select calibrate, enter the blood sugar of a finger stick, confirm. Then after what seems like a long time the new number shows up on the home setting and a little dot appears in the correct spot on the graph. (Then eventually these updates get communicated to my Omnipod 5 insulin pump). Could you explain more about your calibrating strategy?
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Hi @cehunt57! Sure thing. I sometimes find that my sensor is off by a good bit at start up or when it seems off from the way I feel. So, sometimes when you try to make too much of a change, the sensor can error. To avoid this, I make smaller changes. For example, if my sensor says I am 80 but a finger stick says 120, I will calibrate at 100:
120-80=40
40/2=20
80+20=100
I'll check again in a few hours and adjust as needed. Sometimes the small adjustment dials it and both are really close now. It's helped me a bunch. It seems the G7 takes a calibration "under advisement" until it registers and you can sneak up on it by making smaller changes.