Sunday, February 12, 2012

Insulin Activity Surprises

As most of us know, many diabetics experience increased insulin needs during the early morning hours. Dawn phenomenon is common, and needing more insulin to cover breakfast is also pretty typical. I know that I need far more insulin before 1:00 or 2:00 p.m. than I do for the rest of the day. Latel...
10/28/08 11:50am

Yep, has happened to me too.  I think there are a lot of variables that can play games with these hard and fast numbers programmed into our brains and devices.  I've heard, for example, that the actual size of the bolus can modify the duration of action (a very large bolus will "hang around" a lot longer than a smaller one).

 

I think we settle for these pretty simple numbers for a couple of reasons.  1) There would be WAY too much to deal with if it got much more complicated than it already is, and 2) Diabetes doesn't like to always follow those mathematical rules.

 

 

10/28/08 12:22pm

Hi Scott!

 

Yes, large boluses definitely behave differently than you'd expect.  I guess that's why eating low carb works so well for diabetics, because then you avoid ever having to deliver a huge insulin bolus.

 

That's interesting about the duration being modified by the size of the bolus... I'm going to keep a closer eye on that.  Thanks for the tip!

Anonymous
lcakes
10/28/08 1:24pm

Have you ever tried raising your basal rate higher for a couple of hours? Sometimes it seems to help bring down a high faster than just a correction bolus.

Laura

10/28/08 1:41pm

Hi Laura,

 

Yes, temporary basal rates are wonderful!  I don't find that they help me bring down a high "faster" but they certainly work efficiently at lowering blood sugars that are raising steadily.  Also, an increased basal rate can help lower blood sugar without causing a low, as can often occur with aggressive correction boluses.

 

It sounds like you might be suggesting a correction bolus and a higher basal rate... that's probably the best of both worlds!  It's good to remember that we can combine techniques to achieve our desired results.

 

Thanks!!

Anonymous
Anonymous
10/29/08 8:48am

Sometimes it is just unexplainable.  I have my pump set to 5hrs (this is what John Walsh now recommends).  I think the temp rate is the best whenever it is running high (rather than overbolusing).

 

Sometimes it is just a good idea to change your site as the insulin may have pooled (for lack of a better word).

 

All in all, we will have days that we will run high; and as long as it is not too high, bolus lightly and use a temp rate of 5% for a couple of hrs - see what happens.

MaryAnn