I don't understand your comment about the long hours that nurses work. My sister retired recently (as a RN) and she never worked more that the 8 hours she was scheduled to work unless she traded some time with another nurse and my daughter-in-law works in a hospital rehab unit and never works over 40 hours a week. Two of my nieces are nurses and they are never required to work over 8 hours unless there is a major medical need.
Again, I do not understand your assertions.
"I don't understand your comment about the long hours that nurses work. My sister retired recently (as a RN) and she never worked more that the 8 hours"
What's hard to understand? The nurses both male and female from two different shifts in one day all told me they were pulling roughly 12 and 16 hour shifts. They didn't say it was due to any emergencies either. I was there during that time due to a terminally ill relative who required round the clock care which BTW the nurse staff could not give.