This same scenario describes my position now. They offered me PRN an I took it as I did not have any job offer at the time, but I planned to stay as far away as possible. Tonight I got an offer for RN Supervisor at a Nursing / Rehab facility which I interviewed for yesterday, base pay is 4$ higher but the diffs are way lower... Hopefully I can find myself back.
Ps I am a foreign trained nurse with 10 years experience and the said job is my first in the USA, I was so disillusioned...it felt like a developing nation at that hospital.