One other thing that makes no sense at all even if that were needed...
Don't you think a blanket (that they gave me) would make a much better noose than a belt, pants, or a shirt? - And what about the wrist brace I need for corporal tunnel, it has a nice shark metal strip in it, and the cloth can easily be ripped with your hand - also hunting ear protection I use in ANY noisy place, because other wise I can not take the noise, it in itself could (and has) caused a hospital stay (one ear mostly dose not work, but it dose get some tones, those are amplified to the point it's too loud to stand) - again has metal in it, and they are heavy. (Those stayed) - Also My wallet - needed that to give insurance info (they get that after you are in a bed in that place) - that stayed to, just the cards they needed are sharp - AND, I didn't recall it being there at the time, but once home, I found a razor blade in the wallet so....
Not to mention there own needle disposal box - you don't think if I really wanted to I could get inside that......
Point is if you are determined enough, there is always a way no matter what - but logic says (to me any way) - you will never get away with it in a hospital because the second you try, someone WILL be on it - therefore - it's not going to work unless the point is to just get some attention.