just about what every1 here said is what happens....
for me i have done it so many times its not so bad it is kinda painful i think at times
besides the weight height bp breathing looking in ur mouth ears nose and testing ur joints my dr has me lay on a table shirt off usually in underwear too and presses around my tummy and chest this hurts and he is checking your organs and other stuff it feels like he is touching my back bone from the front!
Mine will have me bend over too to check out my backbone and something else?
Around here (central indiana) there is a push to do more like an EKG because some kids have died from a heart problem what was un diagnosed