-distinction can be drawn between ordinary & extraordinary means, which shows a possible secondary precept that could be drawn
-obligation to give ordinary treatment such as food, yet no obligation to continue extraordinary treatment, which may mean that those who can't recover shouldn't be kept indefinitely on life-support machines
-wouldn't be wrong for someone who is terminally ill to decline extraordinary treatment
-Glover suggests 5+ options with regard to euthanasia:
--> 1) take all possible steps to preserve life
--> 2) take all ordinary steps to preserve life
--> 3) not killing but taking no steps to preserve life
--> 4) an act which has death as a possible foreseen consequence
--> 5) deliberate act of killing
-"discontinuing medical procedures that are burdensome, dangerous, extraordinary, or disproportionate to the expected outcome can be legitimate" ('Catechism of the Catholic Church')