Since the Bible makes no clear statement about the use of minor blood fractions or the immediate reinfusion of a patient's own blood during surgery, a medical process known as blood salvaging, the use of such treatments is a matter of personal choice.
So if these are a matter of personal choice, other uses of blood are not a personal choice? Witnesses have to do as the Watchtower commands? I think that's what they are saying here.
No Apologies