Most of the want ads for ED techs here in CT have they will take someone with the tech certification or an EMT.
You can do the EMT-P to RN bridge through the online programs, and I have seen some colleges that will take EMT-P and transfer a ton of credits, thereby reducing your schooling time.
I think you'd have to contact the schools
your are interested in and put your questions about EMT-P to RN with them.
A certified nurses assistant and a certified nurses aid are both the same thing, just different ways to call them..both are CNA's.
I am thinking an ER tech and an EDT are the same. EDT-emergecy dept tech and ER tech-emergency room tech.
Depending on where you are you will see the ER referred to as the emergency dept or the emergency room. I grew up and have lived in CT my whole life I have always heard it refered to as the emergency room.