Just about the time I graduated (BS, not MD), the hospitals in Dunedin NZ had junior doctors on shifts of that long as a bare minimum, and they were on call for

Just about the time I graduated (BS, not MD), the hospitals in Dunedin NZ had junior doctors on shifts of that long as a bare minimum, and they were on call for 72 hours following their shifts. They were supposed to get a few days off after that.