I'm not sure if this has ever been posted, but here's the uh "workbook" that all JWs are given regarding blood fractions. Of course, the hypocrisy shines through as when it asks "Are fractions also covered by the command to abstain from blood? We cannot say" and "Your decisions should be your own and should not be based on someone else's conscience. Likewise, no one should criticize another Christian's decisions."
If each person is allowed to 'make their own decisions' instead of basing it on "someone else's conscience", they why is accepting a blood transfusion itself a disfellowshipping offense? Are you not being forced to accept someone else's (the Governing Body) conscience?