If blood is precious, why is it not collected from dead people for re-use?

Question

Just wondering - blood gives life - why not collect it from a warm dead body before burial.

Answer 1

You have to get it while it is fresh, otherwise, it clots

Answer 2

Organs can be used after death when donated as the cell walls stay in tact and there is no molecular denaturing for about 24 hours as long as kept on ice. Blood as lots has said is oxygenated but the oxygen is carried by the platelets.

There are red and white blood cells and only red (platelets) carry oxygen. Blood does not coagulate in the body but is drawn into the organs and the base of the body hence hyperstacis or discolouring of the skin.

It is not practicable to draw the blood from the body as you would have to draw it from all the organs and this is not as easy as turning on a tap.
So the answer is Money.

Answer 3

Blood gives life if it comes from a healthy-enough donator. Died body shows that it do not fit enough to survive..how could the blood within it. The dead one might carried numbers of virus or bacteria or simply deoxygenated that makes the person died.
Blood is a good medium for bacteria and virus host.

Answer 4

The same reason why you don't drink stale water.

Once the heart dies, the blood stops flowing, so it isn't much use any more.
Compare it with putting used motor oil in your cars engine, same pricipal.

Theres also ethical issues, some families would not be happy about the body of a loved one being harvested for spare parts.

Answer 5

Well, the family of the dead person may not think that appropriate. You never know what kind of deseases a person may have had in their life and they aren't really around to answer any questions. Plus, if they got a piercing within a year ago, they might have hepititis and there's no real way to tell the age of a piercing unless the person who got it kept track of time.

Answer 6

because once a person is dead the blood starts to clot as enzyme and other catalyst activity that prevents clotting stops. Blood collected at donor sessions it treated by the addition of a solution that prevents clotting.

Answer 7

Once the body dies, so do the cells, and the blood is useless. During embalming, the blood just washes down the drain into the sewer system, just like any other waste.

Answer 8

Every cell and protein in our body has a biological "stamp" that identifies it as a cell of YOUR body (self).
If introduced into another body (no matter how...), it is not recognized as "self" and distroyed by the immune system.

Do not collect blood from warm, dead bodies! It is of no use!

Answer 9

blood is made up live cells ,in a suspension of fluid

When you die, so do the cells, in every part of your body --die

so the blood of a dead person would be of no use at all .

Blood for transfusion ,
has to be taken from a live doner --
and even so, has alimited 'shelf life'

>^,,^<

Answer 10

Wouldn't it start to coagulate pretty much as soon as the heart stops? If so, you would have to remove it before death, which is an ethical nightmare. I suppose if one had a relative in a vegetative state, donating blood is no different to donating organs. Interesting question, I look forward to reading the answers.

Answer 11

It would have to be drained almost immediately from the body as it starts to clot i would imagine. also if people have died of a disease of old age their blood would not be very good quality.

also like any part of the body you need relatives permission to take it