Identified donor or not your next of kin get the final call. Having 'donor' on an ID card is just a way that the deceased can inform their next of kin of their wishes.
Remember: For you to be a candidate as a donor you have to die in hospital - generally of a brain injury as it doesn't damage other organs. That's why doctors like motorcyclists.
Donor waiting lists are ridiculously strict by the way. Things like livers and heart valves and lungs and whatnot often go to people who have abused their own, that's just the way of the world. Things are taken on a case-by-case basis though and if somone fails to prove themselves as worthy they get skipped over. Vital organs that can be donated are in incredibly short supply and in general doctors are very careful to make damn sure they're not wasted.
Remember: For you to be a candidate as a donor you have to die in hospital - generally of a brain injury as it doesn't damage other organs. That's why doctors like motorcyclists.
Donor waiting lists are ridiculously strict by the way. Things like livers and heart valves and lungs and whatnot often go to people who have abused their own, that's just the way of the world. Things are taken on a case-by-case basis though and if somone fails to prove themselves as worthy they get skipped over. Vital organs that can be donated are in incredibly short supply and in general doctors are very careful to make damn sure they're not wasted.