I have a real situation - similar but with a few additional details.
At an end of life situation, after my father had kidney dialysis for a few weeks, it was clear that my father's blood count was at a level where he would require a blood transfusion. He was not in a position to make his own medical decisions, Thus, I initiated a no-blood decision.
I did not see how blood would extend his life. From my position, I thought my decision was the right thing to do. He died shortly after, but not because of my decision to support his no-blood stance.