bubbles in resevoir 2

Sorry this took so long. I was flying back across the country today.
Most medical professionals say to balance the volume of insulin with thevolume of air. That is an approximation that does not take into account theair's compressibility, but it's not that big a deal. I suggested going asfar as you can with the reservoir, assuming that you will be pretty muchfilling up the reservoir anyway. I say that it's not that big a deal,because a) you'll be balancing the pressure on the vial side, anyway, byremoving the vial first, and b) you'll be eliminating the ability for thenegative pressure to draw in air to the reservoir by removing the reservoirfirst.

I know there has been some difference of opinion on removing the reservoirfrom the blue connector first and that insulin can squirt out. That is why Irecommended that you put the flat side of the vial on the counter before youremove the reservoir. This way, whichever direction the imbalance ofpressure goes, it is just a matter of AIR transfer in one direction or theother, not insulin.

By removing the reservoir FIRST, you eliminate the ability for the reservoirto take in air---there's no connection to the air---and that shouldeliminate your last-minute bubble entry problem. It won't get rid of bubblesthat are already in the system, but it will keep bubbles from beingintroduced from the connector end.
Please let me know how that goes for you.
Warm regards,