Cozmo 1800 Disconnect Feature

[alisa]

I just got my 1800 and I thought the disconnect feature was something I would use. On my 1700 when I disconnected for a bath etc. , I would always bolus for missed basal using "load cannula". This way it did not show as IOB. I was very surprised that when you use the disconnect feature the insulin shows up as IOB. This is missed basal insulin, and should not show this way. Anybody agree with me or am I somehow confused? (wouldn't surprise me lol).
Alisa

[JediSkipdogg]

I don't have one and can't comment...but.....

It should show up. And while you are in "disconnect" mode it should not show any insuiln being given during that time.

So say you are on 1 u/hr. If you disconnect for an hour and use the disconnect feature doesn't it give 50% up front? So you would get .5 units up front that would be added to the basal and then another .5 units at the end added to the basal. Then, that 1 unit for that hour WOULD NOT be added to the basal.

I guess my question is, does it add the basal during the disconnect time to the total basal or do you have to put it in suspend mode for it to do that?

Technically, your old method on the 1700 could have been done outside of the load canula feature if you just simply suspended the pump during the bath time.

[frige]

I agree with you.

If its considered bolus, it's going to screw up a soon after disconnect correction bolus (subtracting the IOB from what you need).

I could see if they classified it as a 'correction basal'. That way your basal and correction basal would always add up to your normal basal. But why bother calling it something different?

-john

[alisa]

Jedi,
I'm not following you. Why should BASAL insulin show as active insulin on board? The feature allows you to choose between 10% and 50% to deliver up front. But regardless, it is missed BASAL insulin. I don't really care how it records for my daily totals, I just don't want it to show as an active bolus.

[Funnygrl]

Alisa- I never realized this before. You are totally right! That's a flaw I hope they fix soon.

[statdeac]

Alisa,
I have never noticed that this was the case, but do use the disconnect feature. I like the precision of the calculation of how much you've missed based on the actual time and the basal rate. Also if you reconnect way early, the basal will be suspended if the upfront amount exceeds what you would've had during the time you disconnected.

I agree that it shouldn't be tallied as active insulin, however. One thing you could do to avoid this is to use the disconnect just to calculate the basal missed, then enter 0% and replace it (rounded to tenths of units) with the load cannula feature.

Just an idea.
Stat

[Funnygrl]

One other thing I noticed that I thought was weird- I just tried it, I took 50% originally, then when I reconnected, it let me take 100% of the missed basal. What's up with that?

I think the reason it's counted as IOB is because it's all delivered at once, making it act differently in the body than if it were delivered in a true basal fashion.

[JediSkipdogg]

I think the reason it's counted as IOB is because it's all delivered at once, making it act differently in the body than if it were delivered in a true basal fashion.

That's precisely it in my opinion.

I started to write a lengthy reply to this but decided to change it to something short. I think the more that I think about it, it really does screw your numbers up no matter what. If it's counted as IOB then you are mislead to what is going to happen to your BGs. When counted you may not correct if you are running say 130 and see you have .5 units to go. But if it doesn't show as IOB and you are running say 70, then you have no idea how much is left. Remember, with the disconnect feature you are taking what should happen over say 1 hour and doing it in less than 1 minute. No matter how you look at it, for the next 4 hours, your BGs are going to partially be messed up.

[alisa]

FG, I think the 100% when you reconnect is 100% of the 50% you did not already take, not 100% of the total for the disconnect time. I'm assuming it gives the option for how much to take in case you were exercising or running low and don't want to take the normal amount. I think we can all agree this feature is confusing.

Stat, That's a great idea for beating the system. You are a sneaky devil aren't you? ;)

[statdeac]

Stat, That's a great idea for beating the system. You are a sneaky devil aren't you? ;)
Why, yes I am.

[Funnygrl]

FG, I think the 100% when you reconnect is 100% of the 50% you did not already take, not 100% of the total for the disconnect time. I'm assuming it gives the option for how much to take in case you were exercising or running low and don't want to take the normal amount. I think we can all agree this feature is confusing.

Stat, That's a great idea for beating the system. You are a sneaky devil aren't you? ;)
D'ya'wanna know what? You're completely right about the percentages.

This feature is innovative, but feels pretty "1st gen" at the moment. I'm sure we'll see improvements.