Question: in my practical session,in forward testing, a patient RED BLOOD CELLS tested 4 + positive with anti - A , anti - AB , anti

inmy practical session,in forward testing, a patient RED BLOOD CELLS tested 4+positive with anti-A,anti-AB,anti-B and anti-D reagents, indicating itisofAB+blood type.However the reverse testing result was not consistent and instead PATIENT SERUM was 3+positive for A1and O cell and negative for B cell when it should be negative for all 3.
discuss the problems and possible causes for any AB0Rh discrepancies and suggest the possible resolutions and ABO results in each case

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