Temporary Basal Rates for Overnight? What's going on?

Hello there,

I’ve been pumping for about 5 months now. Lately, I’ve been having to set temporary basal rates for overnight. When I test before bed, I’m usually ~90 which means that I’ll go low overnight unless I set the temp. I still sometimes get up in the morning with BGs in the 70s despite my attempts to prevent it.

I’m exercising a bit more, but have been careful to account for the exercise and careful to not overcorrect for carb consumption.

Does anybody else have this problem? What do you do to fix it? I have a doctor’s appt next month, but is it something I should be concerned about?

If you started exercising recently and plan to keep doing it, you will probably have to do basal testing again as exercising make you more sensitive to insulin.

That’s what I’m kind of thinking, but at the same time, by “exercising a bit more” I mean going running five times a week instead of four. It shouldn’t be that different.

This sounds like you are used to go running. I heard that sporty diabetics have a tendency to recover later in the night and this makes it harder to prepare yourself to prevent lows. What about longer lasting carbs like two slices of rye crisp bread (10g/Slice Wasa) or something like that?

Hi Lindsay,

I usually workout afterwork around 5pm, whenever i add EXTRA exercise i have to set a temp basal rate. I run 3 days a week (around 3 miles each workout), if i add an extra day or even a measly extra mile I will go low at night between 12am and 3am. That’s the beauty of the pump, you can set a temp basal rate if you occasionally add more exercise. On those days I’d suggest you take your basals down even more - just because waking up in the 70’s seems kind of low to me. If you start doing this regularly you’ll just have to lower your basal overnight. Do some overnight basal testing on days you add extra excercise, just so you know when exactly you’re going low.


Just FYI - most non-diabetics wake up in the 70’s, I believe. I’m happy as I can be if I wake up in the 70’s b/c I know that my liver is going to spit out more glucose and my breakfast won’t spike like it would if I was in the 80’s or 90’s. Granted, to each his own, but I don’t think being in the 70’s upon waking is a bad thing.

>> That’s good to know! I set my alarm to wake up at 3 A.M. on the days that insulin stuff is not going well. I’ve always set a temporary basal to cover about 20 minutes before exercising to an hour after exercising- usually at 20% so it’s weird that I’m being so careful to stay in range and still having problems. Who knows? I’ll see my endo in about 3 weeks so I’ll bring it up with him then.

>> That is good for non-diabetics, but that is not good for me. I have to take synthroid and some other medications when I wake up where I am not supposed to eat for at least an hour. So, when I get up, I’m showering, getting dressed, and being pretty active so I would rather be a little higher than that when I wake up.