I went through 4 full term pregnancies, first a C-section and also a miscarriage sandwiched between child 3 and 4. With the C-section I did state the no blood thing but don't remember signing anything. I think I left it to my husband and TBH, I am not sure what he actually would have done. I did lose a lot of blood but after the baby was out I went out. What happened while I slept I don't know and at the time I chose the don't ask, don't tell route. I was just glad to be alive.
I considered myself a 'good' witness but this was a subject I didn't want to think about the reality of...picture ostrich with head in sand. I think that is true for a lot of witnesses. They just don't like to think about the reality of needing a blood transfusion and really, most never face it. I do remember feeling relieved knowing that for my children the state would most likely take the decision out of my hands with a court order. I have carried the JW prohibition of blood with me and still feel I would only take a transfusion in an emergency but as has been pointed out, due to HIV blood transfusion is generally used only during emergencies. I am working on ridding my mind of the residual JW crap still knocking about in my head.