When you’re on a severely understaffed ward, you have to get the work done whatever it takes. If the next shift fails to turn up, you can’t just go home. People’s lives are at risk. You’re responsible until you can hand the care over to someone else.
Like this, things can be stretched to unhealthy or even dangerous levels for a long time before there’s any accountability for the management. The front line staff have to get the work done, often at great personal expense.
Honestly, I don’t know how people do it.