Few people realize that organs are "harvested" while the body is being kept alive, artificially. This has been protocol since 1968, when the law allowed for the concept of brain death, as opposed to the heart having stopped. People that agree to donate their body parts may, potentially, still be alive and semi-conscious during the harvesting. NO anesthetic is administered, just a paralyzer. Lots of sauce, just google the subject. For ex.:
http://www.auricmedia.net/organ-donors-alive-organs-harvested/
Gruesome stuff. Not likely the Chinese would make any effort to do this compassionately, as if that's even possible. I'd never sign organ donation papers. Look into this before you do.