Author/Authors :
Mohammadi, Saylan Blood Transfusion Research Center - High Institute for Research and Education in Transfusion Medicine - Tehran, Iran , Moghaddam, Mostafa Blood Transfusion Research Center - High Institute for Research and Education in Transfusion Medicine - Tehran, Iran , Babahajian, Serveh Blood Transfusion Research Center - High Institute for Research and Education in Transfusion Medicine - Tehran, Iran , Karimian, Mohammad Saied Blood Transfusion Research Center - High Institute for Research and Education in Transfusion Medicine - Tehran, Iran , Ferdowsi, Shirin Blood Transfusion Research Center - High Institute for Research and Education in Transfusion Medicine - Tehran, Iran
Abstract :
Detection of ABO blood groups through agglutination is the basis of pretransfusion
testing. However, weak agglutination reactions may be obtained
with reagent antibodies and are a result of weak expression of A and B antigens
on red blood cell surface which may cause a discrepancy in blood group typing.
Here, we report a donor which showed discrepancy between red blood cells
(forward) and serum (reverse) typing. A detailed analysis revealed the blood
type as a variant of blood group B. Subgroup of B is a very rare phenotype of
blood. This is the first case ever detected in Kurdistan blood transfusion Center.
Keywords :
Discrepancy , Blood grouping , B subgroup , Forward typing , Reverse typing
