I'm in the process of moving- yuck- and came across a book I saved from somebody's trash a while back and never read. So now I'm reading it. It's a children's book called Healers In Uniform, published in 1971, and one of the chapters is about blood transfusions. I was interested to learn that dextrose was one of two things originally added to blood to get it to be stable enough to be able to be transfused into another person up to four weeks later.
It makes me wonder about how high blood sugar might affect the stability of blood for transfusion, but I don't know.
I have type O+ blood. I once went to donate blood, but they said I was too nervous and turned me away! Shortly after that I lost weight, and am not heavy enough to donate blood in the United States, where the weight minimum to donate blood is 50 kg = 110 lb.
I am working on a table of blood donation requirements in different countries.