Ajay Samkaria/LinkedIn
Jun 9, 2026, 17:53
Ajay Samkaria: How ABO Subgroups Directly Impact Transfusion Safety
Ajay Samkaria, Product and Application Manager at DIAGAST, shared a post on LinkedIn:
“ABO subgroups are more than just laboratory curiosities—they are clinically significant and can directly impact transfusion safety.
Weak or variant antigen expressions may lead to blood grouping discrepancies, incompatible transfusions, and delayed clinical decisions if not properly identified.
Highlights:
- Classification of A, B and O subgroups.
- Bombay (Oh) and Para Bombay phenotypes.
- Rare phenotypes such as INA and INB.
- Clinical and immunohematological significance.
- Common methods for subgroup confirmation.
Accurate detection and confirmation of ABO subgroups remain essential for safe transfusion practice and quality immunohematology reporting.”

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