[DAT question]

I think the pre-transfusion DAT's meaning is to decide whether the antibodies which have been tested in the serum is auto or allo. And when the minor crossmatch is positive we will test it to look for the reason.

[Transfuse what?]

I think the cord blood will not produce any antibodies againse A and B antigen . The reason is that they are immature and the AB antigen of the patient will present an immuno-suppression to it.

How to transfuse? I think we can obey the rule of bone marrow transplant or PBSCT.

[Severe Anemia two weeks post transfusion]

When saw spherocytes elevated in one’s blood ，we will think it perhaps outvascular hemolysis，and the Haptoglobin will not drop。Because the gel test will be influenced by lot of factor，I rather believe the tube test than it。

[another weird ABO discrepancy]

I agree with Rcurri.But the RBCs have been washed before the test,so I think mybe we can exclude this reason .

[another weird ABO discrepancy]

I have met an AX phenotype person, his serum is reacted with A2 cell.

TO exclude B(A) phenotype mybe you can use the serum comes from a B type person,too .

[ABO discrepancy with CORD specimen]

Is the mother an A1 type? Mybe you can test the baby's RBC with anti-H. I don't think the baby's A antigen is normal. And to know the purported father's blood type is important to resolve this question.

This is my first post at this forum .Hello,everyone!