My father was a doctor and mother a nurse and I grew up having motorcyclists being referred to as "Temporary Australians". Many years ago, I too dated, bought a house and nearly got married a nurse who worked in A&E/Intensive care. Many late-shift nights I'd go to pick her up and make the trip up to the top level ICU where I'd get to hang out and chat with the nurses and sometimes a seriously messed up patient who wasn't going to make it. Several times I'd talk to someone and then the next day or few later I'd ask how he was going. Often they had died.
The phrase my former girlfriend used was "organ donor". One of the things I quite liked about socialising with nurses and doctors when we were together was their very dark sense of humour.