Blood is a living tissue composed of blood cells suspended in plasma.
An average sized man has about 12 pints of blood, and an average sized woman has about 9 pints . When you donate blood, your body immediately begins replacing the donated blood volume, so you can safely donate as often as 6 times a year. Cryoprecipitate, antihemophilic factor and fresh frozen plasma are given to patients who have hemophilia and other bleeding problems. Gamma Globulin is used to supplement the immune system in fighting disease such as hepatitis, and serum albumin is given to treat and prevent shock. Platelets - Platelets act to induce clotting and control bleeding.