How to prevent air from entering IV line when changing IV bag?

The bag is completely emptied. Patients needs another bag.

  1. Without disconnecting the line from the catheter, what has to be done to ensure that no air enters the line when changing the IV bag?
  2. In the case that air has entered the line, how do I clear it from the line?
Authored By Rama Raja on Saturday 8th December 2012