blood types and the compatibility

Antigens

Blood cells contain specific types of these that let the body know which type of blood is needed this helps the immune system recognize the cells as part of itself. The presence or absence of a specific things is the basis for the A, B, AB, and O blood types used to classify blood

Type O blood

Does not have any intentions on the red blood cell

People with O type of blood produce anti-a and anti-B antibodies in the plasma

Which means people with O type blood can only Receive O type bloood

Since type of blood does not have any antigens, it can safely be donated to anyone

Universal donor

Type A blood

Has a antigens on the red blood cell people with a type blood only produces antibodies against B Type blood people with type a blood can only receive type eight or type O

Type B blood group

Has B antigens on the red blood cell

People with type deep blood produce anti-a antibodies in the plasma

And can only receive type B or type O blood

Type AB blood group

Has both a and B antigens on the red blood cell people with type AB but don't produce any antibodies in the plasma that would recognize blood cells so they can receive any type of blood

Universal recipient

addition to the ABO grouping system there is another antigen present

The Rh factor is a second set of antigens that may be present

This gives an individual Either a positive blood type (the Rg factor is present) or a negative blood type (the RH factor is absent)

This means that a person can have one of eight different possibilities of blood groups

People whose blood is positive for the Rh factor can be given either Rh positive or Rh negative blood