For me, I found 4th year could be all over the map compared to 3rd year. My 3rd year consisted of what I felt was a great experience in that I was given as much responsibility as I could handle. In talking to other classmates at different places, my experience was equivalent on all my IM rotations to a 4th year Sub-I in terms of what they expected of you and what my duties were on the service. As a 4th year, I bounced around to about 8 other hospitals and found an extremely wide variety of what the expectations were from residents and attendings and with what I was allowed to do regardless of its complexity. I had a great ICU rotation where I got tons of great experience working up ddx, planning a course of treatment, etc. I definitely would recommend an ICU/CCU for 4th year. However, on my 4th year FP rotation (where I was thinking I would get the chance to function fairly independantly) I basically shadowed the residents and attendings just because that is how they do things there. In my opinion, 4th year can either be a blessing or a curse in that environment: a blessing in that at the end you are near the burnout stage and are sick of wearing your ridiculous short white coat, or a curse in that if you have to be there from 9-5 you might as well have something to do to make the day go by quicker and practice the skills you will need to have in a few short months rather than try to remain enthusiastically interested after the resident does his 4th well child visit of the day without allowing you to participate or interact because "it just takes time and you already know how to do this". Oh well. Either way it is done. 😀