In regards to my diabetic child:
We always run into trouble when we correct before the 3-4hrs after a bolus is up. Depending on what was previously eaten, of course, and if you 'think' you are still digesting or if it's done. The bolus calculator doesn't know really what's going on, it's just doing math.
Often, I'll see a >300 number on the CGM around 2hrs post-prandial. Sometimes, if I correct at that time, we end up crashing hard-core! Other times, I think to myself, "don't do it yet! It WILL go down, just be patient!" just to be wrong and have a high number at the next BG (after 3-4 hours), wishing I would have corrected earlier.
Sometimes if we have a day where the BG just won't go down, I panic and give lots of corrections before the first one is even done working. Ugh, it's so psychological.
-I have the IOB set at 4 hrs.
-Recently done basal rate tests and ISF correction tests. Determined they are good (for now).
-Use Animas Ping and Dexcom.
I always hear things like, "you should shoot for a BG in the range of 15-200 2 hours post meal." Well that's impossible 75% of the time.
Would love to hear what others do! Thanks!