Accounting of Blood Group
Accounting of #Blood Group
People with Group A can donate blood to other Group A people and Group AB individuals. They can receive blood from type A and type O people.
B group people can donate blood to other B group people and AB group individuals. They can receive blood from B and O people.
AB people can only donate blood to other AB people. However, they can receive blood from all groups (A, B, AB, O).
Finally, O group people can donate blood to all groups (A, B, AB, O). However, they can only receive blood from people of the same group as them, namely O.
When it comes to the Rh D antigen (formerly called the rhesus factor), it’s simpler: a Rh D-person can donate blood to a Rh D- person, but not the other way around: someone with Rh D- cannot donate to someone who is Rh D-.
By combining ABO and Rh D groups, we get the universal notions of giver and receiver.
An O-type person can donate blood to all and an AB+ person can receive blood from all.
However, if you have to transfuse blood to someone, "always respect ABO and Rh D groups".
So we will always receive blood from our own group, except in case of extreme emergencies.