Where do you float/work per diem?

Per diem/PRN can work as much as they want to. At my PRN job, the requirement is two shifts every six weeks. I only work the minimum there because the drive is awful. I had a PRN job in the past with the same requirements, two shifts every six weeks, and I worked there two days every week.

I am PRN and have a "home unit" where I must work two twelve hours shifts in a six week scheduling period, but like the above poster I can work as much as I want. I routinely pick up shifts on my home unit, and other units that need help in the hospital (within my level of care). I also pick up at a smaller community hospital on their pediatric floor when I need a slow change of pace. :) They are within the same system.

I am a float nurse that goes to all of the Med-Surg units (which includes every unit that isn't an ICU or that has Pt's under the age of 18 except an OBS unit that can take Peds) in a 400+ bed level 1 trauma/teaching hospital. Most of us are cross-trained for the Stepdown units and can be pulled to the ED on rare instances. Only the nurses that came from the ICU's continue to float both ICU and Med-Surg. We work three 12's a week for full time status.

I work psych, and occasionally float to ICU to care for a detoxing patient until they are medically cleared for my unit. It doesn't happen often, usually our census is too high to spare a nurse.

I work in pacu but pick up shifts on the floor about once weekly when staffing is short or when asked to fill in by someone needing a day off. My facility actually only requires prn staff to work one shift every 3 months.