Do You Need to Know Your Blood Type?

Why blood type matters blood type A blood type is a classification of blood, based on the presence and absence of antibodies and inherited antigenic substances on the surface of red blood blood type O negative blood is known as the universal blood type because it is safe for everyone to receive O negative red cells

blood link In major traumas with massive blood loss, many hospitals transfuse O positive blood, even when the patient's blood type is unknown The risk of reaction is much