In 1996 my father, who was not a JW, became very ill. He was 83 years old and was found to have a subdural hematoma--bleeding on the brain. After that surgery, while he was recuperating, his primary doctor began finding other medical problems with him. About three months after the brain surgery, my father was "diagnosed" with gangrene and the doctors suddenly wanted to amputate one of his legs up to his knee. My answer was No, Find another way. He just had brain surgery. You will not do an invasive surgery like an amputation on him.
Another time his doctor said he was severely anemic and needed a blood transfusion. Of course my answer was No. The doctor couldn't believe I had the gall to disagree with him. His words to me were that I would cause my father to have a heart attack if he did not receive the blood transfusion. (I see in the article mentioned, the opinion is much different these days.)
With the help of Jehovah and the sister who worked in the bloodless medicine office at a local hospital in Dallas, some medications that could help my Dad without the use of blood were suggested to me. Slowly but surely my father recuperated and also regained his thinking ability (resulting from the brain surgery). One day when my husband (nonbeliever also) took him for his monthly checkup, the primary doctor brought all of this up to my Dad and asked him how to proceed if these issues came up again. Without any coaching from my husband (I was not present), he told the doctor that it seemed like I had done a good job of getting him where he was, so he wanted me to continue making the decisions about his care. All I could do was thank and praise Jehovah when my husband told me his reaction. My dad lived for another two years only to be taken by pneumonia.
One reason I am telling this story is to warn others that doctors are not always truthful with their "diagnoses." Don't get me wrong, I am not putting doctors down--we need them. However, they are imperfect human beings. The vast majority are worldly people and don't have our ethics. Sometimes they have wrong motives and do not look out for the welfare of the patients. It seems that when they realized Medicare and Insurance was readily available, they wanted to welcome themselves to a feast. I have seen this occur with other family members as well. Please research and get second and third opinions if warranted, when doctors give you or your loved ones grave or severe diagnoses.
Sure, my father was elderly. But I have the satisfaction of knowing he was content and not in discomfort and agony his last few years. When he later found out they had wanted to amputate his leg, he was very happy I had said No.