I swear I know how insulin works. Really, I do! I’ve always been told that NovoLog in my pump has an active life of about 3 hours, with it’s highest time of effect being within 1-2 hours of taking it. (Of course, I just bulled my way through the ho-hum boring patient information leaflet and it says it sticks around and is active for 3-5 hours. Learn something new every day!)
So WHY then, after I did a site change before lunch, do I end up crashing and staying low all evening (after micro-bolusing for a high carb dinner even), which was like, close to 8 hours after last taking a rage-bolus of insulin?
Seriously, it drives me nuts. The hanging out in the 200s for several hours after a pump infusion set site change is bad enough. But then, add insult to injury when suddenly, all those attempts at correction boluses come avalanching (is that a word? It is now!) into effect 8 hours later? It makes no sense!! Are the cells around the new infusion set site area just holding onto the insulin for a while until it calms down from some sort of site trauma? Do I really not understand Insulin 101 and how long it works in your body/ what it’s time-frame of effect is?
Whatever the issue with me and my insulin education, I am happy to have my Dexcom CGM clue me in when the sugars-tumbling-down begins. Guess it’s time for some more learnin’, ya’ll.