Take it from me, as a retired hospital paramedic turned ER nurse, it is not worth the trouble!
Some states allow RNs to work in Mobile ICU units if they have
c. various state or hospital orientations
Let me tell you, though, nurses are not well appreciated amoung career paramedics. Why? The biggie is money.
Get this. When I was a hospital paramedic (10 years) and going to nursing school, I was full time in Mobile ICU EMS and got all the time I wanted.
Suddenly, when I became a RN, and they had to pay me nurses hourly pay, they no longer had any time for me...
Why? Because as a hospital paramedic, I earned maybe $12/hour base.
As a hospital RN, I earned TO START $20/hr base.
Unless you are one of "the guys," outsiders have a real hard time in big EMS systems. This is especially so for nurses, unfortunately.
On the other hand, if you want to go into EMS management, maybe it would be worth it, depending on what your state requires to work in a Mobile ICU.
I have had some great EMS managers who were battle hardened ER nurses, and they were great bosses. But they also had EMS experience - professional career EMS experience - so they understood "the guys."
EMS does not pay very well. The thing is, RN's are PROFESSIONALS, while EMTs and paramedics are considered TECHNICALS.
Maybe you could get some intel from the NREMT - National Registry of EMTs - in Columbus, Ohio.
Good luck in your search.