There are different groups or classifications of ABO discrepancies and many specific types within each group. This course will review four broad groups of ABO discrepancies:
- Group I - Discrepancies that are associated with unexpected reactions in the reverse grouping
- Group II - Discrepancies that are associated with unexpected reactions in the forward grouping
- Group III - Discrepancies between forward and reverse grouping caused by protein or plasma abnormalities
- Group IV - Discrepancies between forward and reverse grouping caused by miscellaneous problems