Yes only in condition the doc has seen and treated patient before but as his condition got worst... he referred him toPCP is always the first rendering physician... then he refers the patient to...
Rendering is when you take a 3d or 2d model or picture and apply reflections, light, effects, refreactions, shadows, and ect.... basicly, it makes a computer creation look better or real.
Rendering is a process a computer goes through while it calculates how an image should look, this is often done by a separate program for instance mental ray or render man