@Witness007, I'm so sorry. This is VERY upsetting.
@Anon2, I have not heard of platelets being separated into fractions. Further, this is not done by the doctor. This would be a highly specialized lab function.
If this were my situation, I could only think to refer my parents to a so-called bloodless cancer treatment center like Johns Hopkins in MD. Cancer Treatment Centers of America are scattered throughout the US and prefer to avoid blood. I've seen Even non JW patients fly back and forth for their expertise.
@Crazyguy what km is that?!