I have been using Dexcom G5 CGM and a Tandem t:slim X2 pump for some time. I recently started using the Dexcom G6, and I started using the Basal I-Q software on my pump. I have been very pleased with the Basal I-Q, at least until last night….
As a long time pump user, I have learned that for certain meals I do best with an extended bolus, specifically pasta. I usually take 15-25% of the insulin before the meal, and have the remainder delivered over 6-8 hours. I know the phrase your mileage may vary, but this has worked well for me for pasta meals.
So last night I started my extended bolus. Five minutes later the Basal-IQ suspended my pump. The slope was slightly downward, but my BG was at 136!! I restarted the basal, but I did not realize that the Basal-IQ suspension terminated my extended bolus. Needless to say, my BG went high overnight.
Since I now know that that a Basal-IQ suspension will terminate the extended bolus, I will be better prepared to deal with it in the future.