Blood group or ABO-Rh typing is ordered in following conditions which require blood transfusion -
It is also done in pregnant female whether she is Rh positive or Rh negative. In case of the baby born to Rh negative female if baby born is Rh Positive then female will require the Rh immunoglobulin prophylaxis.
There are eight blood groups and they are classified using two systems.
The first system is called the ABO system and it has four main groups:
The second system is called the Rhesus System and is classified as Rhesus Positive (+) and Rhesus Negative (-). The two systems combine to define the following of eight different blood groups of O-, O+, A-, A+, B-, B+, AB- and AB+.
|Blood Type||Donate Blood To||Receive Blood From|
|A+||A+ AB+||A+ A- O+ O-|
|O+||O+ A+ B+ AB+||O+ O-|
|B+||B+ AB+||B+ B- O+ O-|
|A-||A+ A- AB+ AB-||A- O-|
|B-||B+ B- AB+ AB-||B- O-|
|AB-||AB+ AB-||AB- A- B- O-|