There is a nurse that is changing the ventilator mode from volume (what the order is for) to pressure. Every time I come in, I have to change it back to what the order is for. I have a basic understanding of the two, but I'm wondering if any damage can be done with using a mode that the RT did not order. Also, changing the mode without an order is not in our scope of practice. I'm thinking of putting a sticky note on the vent simply stating that the order is for volume, maybe it's a misunderstanding? Or am I over-reacting?