Can blood from dead people be sent to a blood bank, or is it pretty much unusable once the heart stops pumping?
Well, you can’t exactly ask the dead guy if he had sex with a man even once since 1977.
It’s hard to get blood from dead things. I tried once in a lab and nothing came out.
Mortuary workers don’t seem to have any problem pumping the blood out of corpses.
I realize that you can’t get a full medical and sexual history on a dead body. I also realize there’s plenty of tests that can be run on blood to determine if it’s usable.
I also realize that once the heart starts pumping, you can’t rely on the circular system to pump it anywhere. But I also know that when you die your blood doesn’t just go to wherever your soul might go. You still remain a sack of skin full of blood.
So what of all that blood? Can it be sucked out of the body, tested, and used in a blood bank? Or is it not cost-effective or not usable as blood?
It congeals and separates into blobs in the vessels (and heart), among other things. Some of it may leak out of the capillaries and into the tissues. It does something similar to “pool and gather” on dependent organs. Grossly, simplified, these things happen to blood of dead animals. Microscopically, chemically, I’m sure more things happen (I’m not really right now in the mood to go searching in my books about it).