Medical Procedures on Shabbat

I’ve been discussing with Jewish colleagues the traditional view of medical emergencies vis-à-vis the Sabbath, and which takes precedence according to traditional sources. I realize it’s not in the purview of this column to do an exhaustive analysis of this topic, but perhaps you could give a rule of thumb.

Medical Procedures and “Playing G-d”

There was recently discussion on the radio about the will of G-d for people to be sick and doctors treating them. If G-d made them sick, how can a doctor “play G-d” and cure them, seemingly in contradiction to His will? I know we Jews go to doctors, but is there an answer to this question?