When i was a JW , definetely not under any circumstances .
As an ex JW definitely , under any and all circumstances. .
I may be wrong in my thinking here but those ex JW`s who still have doubts about accepting blood as a medical procedure could still be influenced by the WT reasoning for refusing blood.
They are /could still be Captives Of A Concept.
However the fact that the WT has never got anything right these past 100+ years and that no other religion especially the Jewish religion agrees with the WT interpretation of the said scriptures ,thats good enough for me.
Having said that I appreciate their are others (JW`s & non JW`s ) who do not want their body contaminated with someone elses blood for whatever reasons., and that is their perogative.