Originally Posted by AirforceRN2b
I don't understand...did the nurse aspiriate the patient's blood from the IV and then push it into the tubing thereby mixing it with the donor's blood? That doesn't sound right to me...
No, when you use this method to clear air, you are kinking the tubing below the port you're attached to so that when you aspirate, you are pulling the air (and some fluid) from the tubing ABOVE into your syringe. This clears any air from above your port, and I usually then just discard the syringe if I just have IVF running...but you can unkink the line and just inject the syringe (minus the trapped air which is now closest to the plunger) if its a hanging med that you don't want to waste.
I do this when an IV bag has nearly run dry (we hang by gravity most of the time), and instead of repriming, you can just put up the new bag and pull out any air with your syringe.