Jehovah's Witness patient !!!

my question is: we had a critcal incident related to a 45 old lady who consented not to be given any blood or blood products even under severe situation that could lead to hear death. during the operation this patient had bleed and she was required blood transfusion. The surgion was keen to do it to save her life, but the anaesthetist refused to do it. My qestion her as a scrub nurse is what to do?? do we need to carry on with the operation without any objection to save her life???
What else can we do as a preoperative nurse in this situation??