Welcome to the largest Blood Donors portal for the UAE. Official launch on 21 June 2015
Dr Tiju Thomas

Dr Tiju Thomas

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The Official Launch of the Blood Donors UAE portal on the 14th of June 2015. The largest...

Classification of blood groups

Though Karl Landsteiner, an Austrian physician, discovers the first three human blood groups (A, B,O) in 1901, it was only in 1939-40 that the Rh blood group system was discovered by Karl Landsteiner, Alexander Wiener, Philip Levine and R.E. Stetson. This was based on the presence / absence of various antigens (A and B) and the presence / absence of the Rhesus antigen (RH factor) on red cells. This paved the way for classifying the human into major blood groups as A+ve, A-ve, B+ve, B-ve, AB+ve, AB-ve, O+ve and O-ve.

Distribution of blood groups:

The most common blood group is O positive and the rarest blood group is AB negative.

It is very important to have a back up of the rare blood group blood in any blood bank because it may be difficult to get a fresh donor in an emergency.

Antigens and antibodies of blood groups

The most important factor which determines compatibility of blood is the presence of antibodies which act against the antigens A, B and Rh and identification of antibodies which react to these antigens.

Blood Group Compatibilty
Thus as we saw above, each blood group can receive blood only from specific blood groups as given in the table


As you see here, the O-ve blood can be given to all blood groups making it a Universal Donor Blood group. But an O-ve person can receive only O-ve blood.

AB+ve can receive blood from any other blood group making it the Universal Receipient

Blood group compatibility is not just important in transfusion matters, but also in cases of Rh-ve mothers pregnant with a Rh+ve baby.

 | Dr Tiju Thomas Dr Tiju Thomas  | INFO INFO  |  06/08/2013  |  5628 Views
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