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[IP] remaining insulin

> > The Minimed 512 and the Deltec Cozmo both calculate "insulin on board"
> > suggesting adjustments, so as not to stack insulin. The Minimed uses a
> > that approximates insulin activity based on manufacturer data (90% of
> > insulin activity left after one hour, 65% left after two hours, 43%
> > three hours, and 24% of the activity working between hours four and
> > whereas the Cozmo uses a straight line from zero hours to the number of
>  > the user specifies (if the user specifies four hours, then 75% after
> hour,
> > 50% after two hours, 25% after three hours, and 0% after four hours).
> >
> > At first glance it seems that the Minimed method is superior, since it
> > approximates actual insulin activity, rather than a straight line. But
is it
> > really? When calculating "insulin on board" does one really want to
> > insulin _activity_ or insulin that is _unabsorbed_ (or ar they the same
> > thing)? That is, even if the insulin activity doesn't follow a straight
> > perhaps the insulin absorption does, and, therefore, perhaps the Cozmo
> > is superior for calculating "insulin on board."
> >
> > I'd be interested in hearing people's opinions about this, as I think
it's a
> > significant issue.
> >
> > Thanks!
> >
none of these methods are really accurate. fitting a curve to the
manufacturers data for the insulin you are using is the most accurate way.
then you can calculate "insulin on board" by the slope intercept method, y=
mx+b. algebra is occasionally more than useful., spot
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