In 2000 I had surgery. I had three wisdom teeth out in hospital. Two weeks before it I saw the surgeon. He handed me a form to fill out. It had about 50 checkboxes. Did I have AIDS, hepatitis or heamophilia? Was I a drug user? Had I ever had cancer? Was I an alcoholic? I ticked all 50 as "no" and signed the form. It said above the signature:
"You are legally liable for your answers. Any false information by act or omission may result in criminal prosecution or other penalties".
So afterwards I wondered what if someone did lie? Suppose that you had HIV AIDS and you lied on the form. Then the surgeon who did your procedure got AIDS from you. I imagine that he or she would have a civil suit. But for being charged with something: attempted murder? I am in the Australian legal system. So I don't understand the American system with felonies. But it might be some type of felony.
Another aspect is say you lie on the form and then you wake from the surgery paralysed permanently. You go to a lawyer and say "I'd like a civil suit against the surgeon". I imagine that if you have lied the lawyer might say "sorry, you have no rights to a civil suit or compensation; you forfeited such rights when you lied".
It's pretty disconcerting how much trouble you could get into. It's a big deal to sign a pre-surgery form.