As you know I’m recently started on my Ping. I’m not the most mechanical person in the world so I just follow the insertion instructions step by step. There is the one instruction to pull back the plunger in the cartridge and then inject the air into the insulin vial so I do that every time but really don’t know the reason for it.
So the issue is that I’ve been running low on my Apidra vials because I didn’t know how much insulin would get wasted starting on the pump, but I still have lots of insulin in pens, so I decided to withdraw some from the pen with the cartridge needle. But I couldn’t inject air into the pen. So I just went ahead and skipped that part (I pushed the plunger all the way in - injecting air into…well air…lol
So, just curious, what is the purpose behind the injecting of air into the vial?