OP yes I would be mad as well. I wouldn't dwell on it, but I would be mad at that moment. Are readers missing the point?? It's obvious OP became upset because she spent a very long time sitting and talking to this pt to get her to trust her and do some lab work etc, that kind of progress is not easy to make! She went to get her supplies and next thing she knows pt is leaving because someone else had come into the room and was trying to talk her into it. Come on people, your telling me that if you worked hard on something for 20 minutes, left for a few minutes and came back to total destruction of what you had built/worked on, you wouldn't be even a little bit mad? Let's get real and get off our high horses. We are all human.
I feel bad for that lady. Obviously her phobia of needles is so strong it interferes with her being able to receive care. She came to the ED for help obviously, but unfortunately her fear won over.