On blood transfusions, what happens to the donor's inside the receiver's body?

Question

On blood transfusions, what happens to the donor's inside the receiver's body?

Answer 1

I had surgery 3 years ago and because of a large blood loss I was given 7 units of blood it doesnt do anything except become your blood now... at least thats all that happened w/me.

Answer 2

So long as there is compatibility, there should be no adverse outcome and the donor's blood should supplement the recipient's blood deficit.