Jay Hanig:

I asked him if he seriously thought that another CT scan would show
what so many others hadn't and he said: "Of course not... but if I
*don't* order one and something happens, a lawyer will have my guts
for garters because I didn't order one."

So an expensive test is ordered essentially to head off an attorney
and for no other reason. Your health dollars at work.

And you believed that?