Donate blood in blood out into the body's excess food, or approximately 7% of the total blood volume in the body as before to donate will be based on the weight of the donations.
Blood donation is an excess of blood in my body, or about 7% of the total blood volume in the body. Prior to donate to a consideration of the weight of the donor before.
The blood donation out excess blood of the body, or about the volume of blood in the body, and all 7% Prior to donation are considered from the weight of the donation