Jehovah's Witness:
Life is definitely a gift from Jehovah God. It is something to be treasured. We, as Jehovah's Witnesses, show the utmost respect for our life and our bodies. For example, we refuse to smoke tobacco, understanding that this would be defiling the temple of our body. We do not overindulge in alcohol nor use drugs. We love life.
The fact that we want to live is evidenced by our closely following the advances made in the field of bloodless medicine and surgery.
However, the command to abstain from blood in Acts 15 was not merely a health guideline, but a divine prohibition that followed God's MORAL principle on blood.
Jehovah has consistently made it clear that we as humans are to abstain from blood. It began with his command to Noah (before the Mosaic law) to abstain from blood (Gen 9:4). This was repeated throughout the Mosaic law. He continued to remind us in the Greek scriptures.
"It ought to be observed, that this prohibition of eating blood, given to Noah and all his posterity, and repeated to the Israelites, in a most solemn manner, under the Mosaic dispensation, has never been revoked, but, on the contrary, has been confirmed under the New Testament, Acts xv.; and thereby made of perpetual obligation."—Joseph Benson; Benson’s Notes, 1839, Vol. I, p. 43.
As far as blood fractions go, each true servant of the Most High God Jehovah, must determine how he defines "blood". If a Witness views a fraction as "blood" then he should NOT use it.
There are some things that cannot be viewed in any way OTHER than blood. These would include plasma, red cells, white cells, and platelets. These WHOLE components cannot be viewed in any other way than that they are blood. However, if a small fraction is extracted from it (such as serum that contains antibodies to fight a disease or counteract a snakes venom), then some Witnesses conclude that it is no longer blood and are not covered by the command to abstain from blood.
If I was commanded by my parents to not eat the apple pie, but I went and ate an apple, would I be guilty of disobeying their command not to eat the apple pie? No, I ate something that goes INTO apple pies, but I did not eat the apple pie itself.