It is always the responsibility of the person administering the medication to know exactly what medication she is giving. It isn't a matter of not being able to trust the nurse, her mistake doesn't eliminate yours. It IS your fault because you did not confirm what the vial of medication was that she drew from, it sounds like she drew it up and handed it to you and you didn't look at the vial? No matter who was drawing the thing up, her standing next to you or you yourself, YOU should have looked at it to be sure.
We can't possibly know if you'll be dismissed from the program, anyone's guess is as good as anyone else's unless they are on your school's disciplinary board or in charge of your school's nursing program. Some schools
may dismiss, some may not.
One thing is 100% sure, you are unlikely to repeat this mistake!
Good luck to you.