I've done nursing work, and my brother is an EMT in paramedic training. From the discussions we've had, you can always leave nursing/hospital care if physically

I've done nursing work, and my brother is an EMT in paramedic training. From the discussions we've had, you can always leave nursing/hospital care if physically able to express that desire and mentally stable, and the only EMT care you can't decline is if you tell them you're going to kill yourself or are physically unable to decline.