Does the person doing it usually know what's wrong with you? I've got an ankle injury and had an X ray today...saw the GP yesterday and she sent me....
The X Ray person (what are they called??) said "Well I've had a sneaky look at the x ray and I can't see a fracture but I'm not the expert...call the GP's surgery tomorrow....I'll put this on a fast report."
I thought the person doing the x ray was the expert?