High BG after set change.

Hi @Bobr17, are you taking a long time to change your set?
When you say you rid the tube of bubbles and fill 2 units of insulin, I'm not sure what you mean, when I fill the tubing it takes 5-6 units for the 60cm tubing, I don't recall exactly (I accidently ordered 80cm tubing last time and that takes nearly 9 units) and then I fill the cannula with the 0.3u needed for the cannula I use. Where has the 1 unit recommendation come from? Apologies if I'm just not understanding correctly or if that's what's recommended for the tubing or cannula you use.

 

Ah that's quite the puzzle then. Do you think it's the adrenaline? Do you get symptoms that suggest that's what it is, sweating, shaking, anything like that?
Could you try inserting the new cannula before you change the reservoir etc and see if that makes a difference? So you'll have the cannula in your skin for a little while before disconnecting from the old cannula, rewinding the pump etc, might be worth a go if you haven't tried that already, as I'm assuming that's where the trauma part comes in and you don't have a needle phobia or anything like that?

 

Hi Borb! I also had a 640g for years and had the same problem (I recently switched to tandem and I think its the same, but too soon to tell).

I used to do more for the filling tube. Something like 15 units to be sure. And this is something that nobody specifically recommended but right after a change and depending on my BG I would give myself a bolus of (0.3 to 1 unit). That helped a bit but I always found the change of set problematic. I just tried to avoid carbs for the first couple of hours and keep a close look.

 

@Bobr17 have you tried using an increased temporary basal for a couple of hours after a set change? Trial and error would give the correct percentage.

 

I also have the same problem and find it very frustrating as it often sends me high overnight as I do tend to have my set changes early evening, I have done a temp basal a couple of times but then find I can be going too low before bed.
I wonder why it does this

 

Some pumpers note that their Blood Sugar rises after they change their infusion set. One of the reasons for this may be that insulin "leaks" from the old site when you remove the old set.

When you insert your new set, try leaving the old set in for a length of time equal to the amount of time that your insulin is "active". For Humalog users, this is at least two hours, for Regular or Velosulin users, this is at least 4 hours. That's right - for a while you will have two sets inserted, but only one will have a tube and pump attached to it!

 

@himtoo Another benefit of this comes if there is a problem with the new cannula. You can quickly, temporarily, swap over to the old one if it's not convenient to insert a new one immediately.

 

I have been pumping for the last 18 years and have also had this problem, I have tried having extra insulin after set change as I find it takes a while for the insulin to find its way into my system it works most of the time but not always so I will also try leaving my old canulla in for a while, I have lately been thinking I may need a infusion tube fixed permanently inside my body as with the internal pumps but that does mean you have a tube sticking out of your body, not even sure if you can still have it done, another possible problem could be where you put your infusion set as I find I have a few area's now that are no go places on my body because of the time I have inserted or injected there