ABOtyyppi
ABOtyyppi refers to the human blood group system, the most important of the 30 known human blood group systems. It is based on the presence or absence of antigens A and B on the surface of red blood cells. Individuals have one of four basic blood groups: A, B, AB, or O. Blood group A has the A antigen, blood group B has the B antigen, blood group AB has both A and B antigens, and blood group O has neither.
In addition to these antigens, the ABO system also involves antibodies in the plasma. Individuals with blood
When transfusing blood, it is vital to match the ABO type of the donor and recipient to
Blood group O is often considered the universal red blood cell donor because their red blood cells