I ask because my MIL health care proxy specifically states that if she has a terminal illness she doesn't want any extraordinary life preserving measures taken. She keeps becoming anemic for unknown, or unverified reason. With much resistance, she does receive iron infusions to rebuild her blood, which helps for a bit. Her PCP says if she or my husband do not want to pursue why this keeps happening, he has no objection, since she is suffering from a terminal illness. She does not want medical tests. She is 88. I think she now has what would be described as moderate dementia.