Bubbles in line - Tandem Tslim x2

Hey everyone!
So Ive been using the Tslim x2 for almost 2 weeks now. So far so good. I am having issues with bubbles in the line though. If I bled all of the bubbles out of the line every time I saw one, Id probably lose half my insulin. I know they say the bubbles arent harmful but it still freaks me out. I take the air out of the syringe and cartridge every time, so Im not sure if theres something else I should be doing that Im not. Advice and suggestions welcome. I currently have some bubbles in the line and I just want to go to bed. Should I really spend my night wasting all of my insulin or just go to bed? Lol this is stressful

A few suggestions:

  1. Fill your tubing with insulin that’s at room temperature. I used to fill mine straight from the fridge - I get lots less bubbles once the chill is gone. (Insulin is generally good for 30 days at room temp, but check the product info for your formulation.)
  2. Some insulins are/were in suspension and need to be shaken before taken: that does not apply to the insulins used in pumps so just draw it up.
  3. Make sure the connectors between the long tubing and the cartridge are tight - no need to force it. just twist it firmly.

Here’s a Youtube video you may find helpful:

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If Bubbles in the tubing are less than a fingernail width then there’s no reason to worry. Are you leaving your insulin out or are you filling the cartridge with cold insulin? Cold insulin will have a lot of dissolved gas, which forms bubbles when warmed up. I keep in in-use insulin out of the refrigerator. I put it in a drawer or cabinet.

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Sarah @HisWifeTheirMama my response won’t add much to what Dorie and Joe wrote, but as you implied a double question, I’ll provide separate response.

Should you be concerned? Not really, unless the timed-periods are providing you with a heavy basal flow. I don’t ever inspect my tubing for bubbles once I’ve a new infusion set and haven’t had bubble issues on two decades. Note that my basal rates from mid-night on range from 0.22 uph until 5 AM when I begin my slow step-up to cover the adrenalin wake-up dump and then max out at 0.55 uph - your basal rates may not be similar.

Avoiding bubbles: as has been said, do not ever begin with cold insulin - my practice, in Florida, is to remove a new vial from the refrigerator when I see when filling a reservoir/cartridge that I will not be able to fill my next cartridge. That means, a new vial has had at least three days to acclimate itself to living conditions. Also, never follow RN style and inject air through insulin in a vial - syringe should be inserted into the insulin vial while the vial is upright then slowly inverted to draw out sufficient insulin and follow the rest of the procedure.