My preferred physician would be one disgusted in any case by the notion of doctor-driven euthanasia, but especially so because it is a slippery slope.
He or she would be aware that in the Netherlands, where euthanasia has been legal since 2000, there is no explicit request for it from the patient -- as the law intended -- in fully 40% of euthanasia cases. He or she would also be aware that although Dutch law prohibits euthanasia in children under 12, the Groningen Protocol has nevertheless normalized the euthanasia of certain kinds of handicapped newborns.
Do not fall for any claptrap about what "your mother would have wanted." Read my lips: Your mother does not want to be made to feel it is her duty to die before nature decrees, so that others may be freed from care and responsibility, a subtle shift that inevitably follows upon an established "right."
Mind, your mother is no martyr. If it's hopeless, no heroic measures, please. Oh yes, and she wants to die as painlessly as possible. If this means raiding the entire arsenal of available analgesics and even sedatives whose side effect is to facilitate an easier death, so be it.
Intention is all. I want an unequivocal healer-patient dynamic with my doctor. His or her intention should be to kill my pain, not me. Finally, my doctor should be well versed in palliative care techniques, improving all the time.
I feel much better now, and hope, my dear ones, that you do too. You just got a very nice gift: certainty about my dying wishes. And I just gave myself two gifts: peace of mind -- and several hundred thousand National Post-reading witnesses.