One thing that all diabetics who use insulin pumps know is that Your Diabetes Technology may vary. And what works for you may or may not work for someone else. As is the case with the Tandem t:slim. It’s sleek, it’s cool, and it works… for most… as long as you’re not too attached (no pun intended) to a remote or to using Apidra insulin.
For me, it fits, but it’s not perfect. There have been aspects of it that I have been able to overlook because it’s benefits far outweighed the little things that bugged me. One of those things was how the bolus calculation works. As most of you know, I absolutely love and completely rely on my IOB tracker (insulin-on-board). The way they have theirs right there on the screen in simply genius if you ask me and really informative. What I don’t like, though, is how it calculates it in with a bolus:
Basically, what I don’t like is where it only “reverse-corrects” your bolus if your blood sugar is below 70. And that value cannot be changed. While I thought it wasn’t that big of a deal, last week, it proved to actually be a big deal. I fought to stay above that 70 line a lot of the time, and for the most part, lingered in the 80’s when I would test for a meal. For some, that’s a great number. But for me, it’s too close to being an out-of-comfort range to NOT subtract out IOB, especially if you have 2.56u still working in your system. In my opinion, they need to just take out the middle option and let the calculation be based off of your Target BG… because, after all, that is your target, not 70mg/dl (that is, unless you do have a target of 70mg/dl.. and if you do… then you must be one wickedly in-tight-control diabetic). It’s just too risky not to. I’ve had to constantly do the math myself and subtract it out to avoid a drop later, which, with this “advanced” of an insulin pump, I shouldn’t have to.
SO, please, Tandem, make a change to how the IOB is calculated. You have a great pump, except for that little part that could be a major problem for us who rely on IOB calculations.