I have been told that the naked "requirement" relating to this situation was probably invented. While in Spain, my then girlfriend had to get an exam and an "outsourced" xray for T.B. and other things. She was, at a rural clinic, required by the x-ray tech, to stand totally naked before the machine he used (a box shaped device (this was 20 years ago).
I have been told that nearly any white clothing would have done the trick, and that she needn't have been fully nude, or even partially undressed.
Comments?