Always negotiate. I'm in Missouri and have taught for 6 years. I just took a full time faculty position at a college and was firm about my bottom line. I make comparable to what I made/make PRN. I teach theory 2 days a week for 3 hours and do lab/clinical one day. The other 2 days are office days that can be worked from home, they are Monday and Friday. Yes , I prep a lot but every instructor does that first year teaching a new course. I have no weekend clinicals. I would never agree to that. I get a week off between semester 2 weeks for Christmas. I definitely can't compare my schedule or salary to what I did at the bedside.
I guess it depends on where/how you wanna get your stress. 12 hour shifts, weekend holidays, patient safety issues always understaffed. Or prepping to lecture, teaching to the new generation, pressure to pass students, too many students in clinical. But when it comes to salary for me I make more teaching than I would at the bedside straight. ( no differentials, not PRN).