Review the following test results and match the expected reaction pattern to the reported ABO type.

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The page below is a sample from the LabCE course ABO Typing Discrepancies. Access the complete course and earn ASCLS P.A.C.E.-approved continuing education credits by subscribing online.

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Review the following test results and match the expected reaction pattern to the reported ABO type.

Select the correct match for each item from the drop-down box

Patient One: Anti-A = 0; Anti-B = 4+; A1 cells = 3+; B cells = 0
Patient Two: Anti-A = 2+; Anti-B = 0; A1 cells = 0; B cells = 3+
Patient Three: Anti-A = 0; Anti-B = 0; A1 cells = 3+; B cells = 3+
Patient Four: Anti-A = 4+; Anti-B = 4+; A1 cells = 0; B cells = 0