can someone explain this to me?
I think you can't do it until after your intern year and whether you are able to do it or not depends on your residency's policy. Correct me if I'm wrong.
Probably. Varies from hospital to hospital and probably from dept. to dept. in a single hospital.
Those who can do it (aka aren't passed out from fatigue) swear by it since you make $50-75/hr.
I've heard of moonlighting in-house or at local affiliated hospitals, as well as at a "doc in a box."
That would be me (well, two, but we could count my hubby if we wanted).
I'll probably moonlight if I can handle it just to pay the interest on my absolutely outrageous student loans.