Similarly, blood that flows into a wound may be captured and filtered so that the red cells can be returned to the patient; this is called cell salvage.

The details may vary, and new procedures, treatments, and tests will certainly be developed. It is not our place to analyze each variation and render a decision. A Christian must decide for himself how his own blood will be handled in the course of a surgical procedure, medical test, or current therapy. Ahead of time, he should obtain from the doctor or technician the facts about what might be done with his blood during the procedure. Then he must decide according to what his conscience permits. (See box.)