I wanted to share something that came to mind recently.
If you are using any of the closed loop setups, imagine that for months and months your pump and CGM are churning along and making automatic adjustments.
It takes whatever your normal basal profile is and automatically adjusts it up and down (or just down in the case of Basal-IQ), based on what your CGM says.
All well and good…except if you aren’t paying attention to the changes it might be having to make all the time to your normal basal profile.
Now at some point, imagine you get a bunch of bad Dexcom sensors, or have an unexpected Dexcom transmitter failure, or your RileyLink dies, or you lose your cellphone, or something like that happens.
Now you have to go back to the normal - non CGM controlled - basal profile. Except maybe it has been months since it has been dialed in.
As kids grow, or adults gain or lose weight, or as their activity level changes, or their diet changes, or as seasonal changes happen - basal requirements change!
If you have not dialed in your basal profile lately, and you have been relying on automatic pump adjustments based on CGM, and then suddenly that is no longer available, for the reasons I mentioned above…
Anyway, just wanted to mention this for people who are relying on the automatic pump adjustments. Take a look at them from time-to-time and consider on occasion turning it off and manually running through a few nights when you still have your Dexcom available! Dial your basal settings back in.
It would probably be much easier and safer to do this on occasion when you still have the CGM, then on an unexpected night when suddenly CGM is no longer working, and your basal profile has been untouched for months…
I don’t use Loop much (only on rare occasions), so let me know if this idea makes sense.