Union contracts are also called “collective bargaining agreements” (CBA, for short). Each one has differences and idiosyncrasies specific to that workplace, its specific staffing issues, historical grievances, and many other factors. Some CBAs include more than just professionals (like Swedish/Edmonds), while others, like Multicare Auburn, cover a more narrowly defined bargaining unit.
Either way, every contract always includes sections (or “articles”) that protect against arbitrary firing, define a predictable and transparent wage scale, and establish formal avenues for resolving scheduling and other vexing issues. Think of an issue that matters to you, and see if you can find it one these contracts…

Swedish/Edmonds Professional-Technical CBA
Multicare Health System Auburn Professionals