Per Diem vs Full-Time in Healthcare
By MedXL Editorial Team · Updated 2026-08-26 · 6 min read
Most clinical job listings sort into a few employment classes: full-time, part-time, and per diem — called casual or relief in much of Canada, and often PRN in the United States. The same unit, the same work, and the same scrubs can come with very different pay structures, protections, and freedoms depending on which class you choose. This guide lays out the real differences and a practical way to decide.
Full-time roles come with a defined schedule or rotation, a benefits package, and the strongest job protections your employer offers. Part-time roles carry a smaller guaranteed commitment, usually with prorated benefits — in unionized Canadian settings, part-time lines are posted positions with defined hours and seniority accrual.
Per diem / casual / PRN roles have no guaranteed hours in either direction: the employer offers shifts as needed, and you accept or decline them. In exchange for flexibility and typically a higher base hourly rate, you usually give up benefits, paid leave, and schedule guarantees. Most employers attach conditions, such as a minimum number of shifts per month or availability for certain periods, so "no commitment" is rarely literal — read the requirements for each posting.
In this guide
- What the terms actually mean
- The pay and benefits math
- Scheduling and lifestyle differences
- Career-growth considerations
- How to decide
- Questions to ask before signing either way
- Two composite examples
- Key takeaways