Are you actually safe doing your job at the end of these marathon shifts?
No, that’s why they stopped. Like others, as a junior doctor I worked Friday morning to Monday evening. In one job three of us shared the rota so when one was away you worked Monday morning through to Tuesday evening, Wednesday morning through to Thursday evening and then Friday morning through to Monday evening. Worst week for me was 133 hours or 127 if you excluded the time I was asleep.
I can tell you that I was so tired on one occasion that I saw the patient and did the right things ( I went back later and checked ) but when I came to write the notes I couldn’t remember how to do joined up handwriting and after some very slow thought did the entry in block capitals.
My main aim was to fail safe and allow the seniors who had had sleep to sort the problems in the morning.
Nowadays, my longest period on call is 40 hours and that is availability with a couple of 10 hour days in amongst it. However, already had one night with no sleep this year which makes me unusually grumpy by late the following afternoon.