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Indian J Anaesth. 2014 Sep;58(5):524-8. doi: 10.4103/0019-5049.144645.

Blood groups systems.

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Department of Neuroanaesthesiology, All India Institute of Medical Sciences, New Delhi, India.


International Society of Blood Transfusion has recently recognized 33 blood group systems. Apart from ABO and Rhesus system, many other types of antigens have been noticed on the red cell membranes. Blood grouping and cross-matching is one of the few important tests that the anaesthesiologist orders during perioperative period. Hence, a proper understanding of the blood group system, their clinical significance, typing and cross-matching tests, and current perspective are of paramount importance to prevent transfusion-related complications. Nonetheless, the knowledge on blood group system is necessary to approach blood group-linked diseases which are still at the stage of research. This review addresses all these aspects of the blood groups system.


ABO blood groups; antibody typing; blood group system; rhesus blood group; screening

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