How blood banks work.?

Very well. Blood banks are highly certified. They take your blood, screen you by questions and then do multiply tests on the blood to insure safety. They store the blood, process the blood and use blood in many ways to provide the blood and blood products needed by hospitals nationwide to save llives by the minute. Give and give often. It's the gift of life!
By genarocity. All over the world blood banks work by free donation of blood to save a life. The charges are not for blood, it is the cost for selection for screening ( to avoid communicable diseases ) , processing, storage, and cost for distribution to health facilities. Indications for transfusion are getting less and less , if indicated it is safe and life saving. Please donate your blood and save life.