Not too long back, when I was an elder still administering the Advanced Medical Directive, I asked a question regarding blood fractions to which I never got a satisfactory answer. It went something like this;
If a brother or a sister agrees to accept blood fractions then we need to be aware that these fractions have come from donated blood, very often not just a single donation but the result of extraction made from multiple donations. However, if I was found to be a source of a fraction that could save a brother or sister's life could I give blood in order to save them?
It seemed to me at the time, there was no way a witness in 'good standing' would ever give blood, no matter which parts were to be used. However, to only accept something and never to give back seemed selfish to say the least.
eyeslice