Nursing to paramedic

Yes, you'd need to do the whole degree if you decided to go that route. You could also do a
pre-reg paramedic masters - this course is unique because it's for people who aren't paramedics but want to be; there are other paramedic masters but they're for people who are already paramedics. Alternatively, EEAST do have a new route where you can work on an ambulance as a nurse - you're not a paramedic exactly, but you'll use your existing skills in the new environment.

There is a nursing conversion course that will get you a FREC5, but the frec qualifications aren't well known so you might not get a job with it. Paramedic is also the level 6, so you'd be looking at ambulance technician roles with the 5.