I am, I think. THe box is checked and my family knows my wishes.
That being said I used to be a blood donor. Some years ago, when I got my 20 gallon pin, the gal was reading my list of medications and very politely thanked me for my time, effort and trouble and also told me that I was done giving. I'm not really sure of what on the list they don't like.
I guess I had better check with those in the know whether there is anything medically besides being busted all to Hell that might disqualify me as a donor.
We have always joked that the poor SOB that gets my parts is getting the short end of the stick and must REALLY be in bad shape.
I think everybody in the family is a donor. Dad had a heart valve that lasted 17 years from a donor and brother number 2 has one of brother number #4s kidneys.
RWT