Just wondering if anyone here understands how triage in emergency works? Now I understand the concept of treating those of the greatest need first. I suppose I want/need to know how it is implemented.

Sometimes it is obvious to see why someone goes straight in or has less of a wait, but other times the whole waiting process seems to be backwards. I just don't get how a patient that is laughing, eating and moving well, can go ahead of someone in pain and almost collapsing.

Does anyone have first hand experience with triage who can explain? Thanks