Testing the Red Cells With Known Antisera

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

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Testing the Red Cells With Known Antisera

Table 5. Testing the Red Cells With Known Antisera.
Patient Red Cells Tested With Known Antisera
ABO Antigens Present on Red Cell
Anti-A
Anti-B
Anti-A,B
3-4+
0
3-4+
A
0
3-4+
3-4+
B
0
0
0
Neither A nor B
3-4+
3-4+
3-4+
A and B
+ = agglutination (graded 1+ to 4+)
0 = no agglutination or hemolysis