Blood Typing
Alternate Names : Cross Matching, Rh Typing, ABO Blood Typing
What do the test results mean?
Forward typing means that:
Type A blood clots when mixed with anti-A serum.
Type B blood clots when mixed with anti-B serum.
Type AB blood clots when mixed with both anti-A and anti-B serums.
Type O blood does not clot when mixed with either anti-A or anti-B serum.
Rh-positive blood clots when mixed with anti-Rh serum.
Rh-negative blood does not clot when mixed with anti-Rh serum.
Reverse typing means that:
Serum from type A blood clots when mixed with type B blood.
Serum from type B cells clots when mixed with type A blood.
Serum from type O blood clots when mixed with type A and type B blood.
Serum from type AB blood does not clot when mixed with type A or type B blood.
What this means for transfusions:
Persons with type A blood can receive blood transfusions from donors with type A or type O blood.
Persons with type B blood can receive transfusions from donors with type B or type O blood.
Persons with type AB blood can receive transfusions from donors with type AB, type A, type B, or type O blood.
Persons with type O blood can receive transfusions from persons with type O blood.
Persons with Rh-positive blood can receive transfusions from donors with Rh-positive and Rh-negative blood.
Persons with Rh-negative blood can receive transfusions from donors with Rh-negative blood.
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