The conversation would go that way:
Dad: We loved you so much that we did all we could for you not to have a blood transfusion, leaving you in the care of Jehovah...
Daughter: But dad, what were my chances of survival if I didn't receive the blood?
Dad: The doctors said that you would die within a few weeks, but they don't count on Jehovah's help...
Daughter: What your are telling me is that we wouldn't be having this conversation if the authorities didn't intervene?
Dad: But we would have been reunited in resurection!
.....a few months later....
Daughter: I no longer believe in the WT...
Dad: We will shun you because we love you...and we want you back....