What additional testing should be done on the specimen?
What is the minimal positive grading for the reverse grouping cells to be considered positive?
What is the probable reason for this discrepancy?
What is the follow-up when, after performing routine investigation, a valid reverse group cannot be obtained or explained?
When a reverse grouping remains un resolved (i.e., reactions in the reverse group are still less than 2+) what additional testing must always be performed when crossmatched blood is required?