Um no. You call your senior because he has more experience. If the senior is stumped, they can get on the phone and call the attending. The point of the prior poster is that neither is functioning "independently". A support system is in place. This is how training works in any field -- you learn how to do it first by being shown, and thereafter with a safety net, they let you try your hand at it first, while you are on call. If you get into trouble you call someone with more experience. If the senior gets into trouble, he too is still training with a safety net, and calls the attending. This system allows the newbies to learn by trying, and also lets the attending sleep until he's really needed. It avoids total hand-holding, but at the same time realizes that these folks in the hospital at night are not 100% functioning GPs able to tackle every problem on their own. It's a pretty ingenious training system actually. Any country that scoffs at this and says -- you did a year of training you are ready to function without a net, is one that does not protect its patients very well, and likely this is because they don't have the litigiousness of the US which hold practitioners feet to the fire if they do something stupid right out of training. I think the consensus in this country is that you train your doctors over a number of years so you don't end up having them damaging patients and being sued into oblivion. In other countries the lawsuits aren't such a threat, and so the training doesn't have to be as thorough. That doesn't make the other countries system better. Might be better for you personally if you have a vested interest in finding a job out of residency, but not better for the US society. Things are set up for reasons, and this one happens to have been set up for a pretty legit reason.