just to add, there are alot of other grades out there other that an american EMT or paramedic.
ETA, EFR EMFR, REC 5, FR, ECA, MFR, ETA(different to first), EMT in different areas, like EMT-A,I, I99, different countries EMTS, Different levels of paramedics, Advanced paramedics and so on, to compile a list that is anyway comprehensive would be nigh on impossible.
If i said i was an EMFR with EMT-I IV cert and can thromobolise, With REC 5 and WEMT, and have 63 different drugs i can admin, short of sounding like a plonker you can't really check it.
You would have more success in looking at the quality of their posts.