I f you can't quite remember what your blood type is -- don't worry. That just means you're among the 33% of Americans who ...

Blood type classification uses the ABO system. This system determines blood type based ... The Rh factor can be either present or absent, which adds another layer of complexity to blood typing.

In cases of questioned paternity, ABO blood-typing can be used to exclude a man from being a child's father. For example, a man who has type AB blood could not father a child with type O blood ...

Among the immediate complications of transfusion, the most common and serious are intravascular hemolytic transfusion reactions because of ABO incompatibility caused by giving the wrong blood to a ...