But jws will accept hemoglobin-based products (considered blood fractions) that are made from expired human blood despite their saying that blood should be poured out on the ground and not stored.
*** w00 10/15 pp. 30-31 Questions From Readers ***Occasionally, a doctor will urge a patient to deposit his own blood weeks before surgery (preoperative autologous blood donation, or PAD) so that if the need arises, he could transfuse the patient with his own stored blood. However, such collecting, storing, and transfusing of blood directly contradicts what is said in Leviticus and Deuteronomy. Blood is not to be stored; it is to be poured out—returned to God, as it were. Granted, the Mosaic Law is not in force now. Nevertheless, Jehovah’s Witnesses respect the principles God included in it, and they are determined to ‘abstain from blood.’ Hence, we do not donate blood, nor do we store for transfusion our blood that should be ‘poured out.’ That practice conflicts with God’s law.
------------Yet 4 years later the WTS says
*** w04 6/15 pp. 30-31 Questions From Readers ***Some would refuse anything derived from blood (even fractions intended to provide temporary passive immunity). That is how they understand God’s command to ‘abstain from blood.’ They reason that his law to Israel required that blood removed from a creature be ‘poured out on the ground.’ (Deuteronomy 12:22-24) Why is that relevant? Well, to prepare gamma globulin, blood-based clotting factors, and so on, requires that blood be collected and processed. Hence, some Christians reject such products, just as they reject transfusions of whole blood or of its four primary components. Their sincere, conscientious stand should be respected.
Other Christians decide differently. They too refuse transfusions of whole blood, red cells, white cells, platelets, or plasma. Yet, they might allow a physician to treat them with a fraction extracted from the primary components. Even here there may be differences. One Christian may accept a gamma globulin injection, but he may or may not agree to an injection containing something extracted from red or white cells. Overall, though, what might lead some Christians to conclude that they could accept blood fractions?
“Questions From Readers” in TheWatchtower of June 1, 1990, noted that plasma proteins (fractions) move from a pregnant woman’s blood to the separate blood system of her fetus. Thus a mother passes immunoglobulins to her child, providing valuable immunity. Separately, as a fetus’ red cells complete their normal life span, their oxygen-carrying portion is processed. Some of it becomes bilirubin, which crosses the placenta to the mother and is eliminated with her body wastes. Some Christians may conclude that since blood fractions can pass to another person in this natural setting, they could accept a blood fraction derived from blood plasma or cells.
Does the fact that opinions and conscientious decisions may differ mean that the issue is inconsequential? No. It is serious. Yet, there is a basic simplicity. The above material shows that Jehovah’s Witnesses refuse transfusions of both whole blood and its primary blood components. The Bible directs Christians to ‘abstain from things sacrificed to idols and from blood and from fornication.’ (Acts 15:29) Beyond that, when it comes to fractions of any of the primary components, each Christian, after careful and prayerful meditation, must conscientiously decide for himself.
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So while a jw may not store their own blood for future use, they can use hemoglobin-based products made out of someone else's stored blood.