I'm not a nurse but I've worked in healthcare in the US a long time and it's infuriating to me how nurses are treated. They get to take all the abuse from patients and their families who are themselves victims of this inhumane money machine dressed up like a first world healthcare system. They get to do that with a continually shrinking pool of resources whether through admin's incompetence or malice. It's fucking criminal what they have to deal with. Like people should go to jail for what they've done to make it this way. Exactly like the way they've done teachers, my friend.
Anyway, I'm not a nurse but I would still be down for a healthcare-related comm. As you say, nurses are primed to be radicalized. Corporate retail pharmacy workers (CVS, Walgreens, Walmart, and other assorted scumbag entities) are also ready IMO. They got rocked pretty hard on all sides by the pandemic, I mean imagine being a public face of healthcare in the middle of all that when literally any 
can waltz in to where the big scary vaccine is being given and act like a literal child berating people in line to get it, but saving their best verbal (and sometimes physical) abuse for the technician (who doesn't even make a fucking living wage) because their copays went up because they're also a victim of this horrible evil system. It's victims all the way down but there are potential comrades there too.
correct! "supervised" use can be bullshit too, thank the meat industry for that.
in a perfect situation they got advice on the dl from a medical professional they know. maybe they're a med school student and have an uptodate subscription!