TattedTech

Hi mpmiola,
I apologize for my late reply.
Grifols just confirmed the phenomenon that was described in the discussion above as the cause of the ABO discrepancy. They stated that the probe in Erytra analyzer goes down to 2mm from the bottom of the tube to pick up red cells. in this case, the transfused cells (group O) are more heavier (more dense) than the patient's own cells (group A) and therefore they occupied the bottom of the tube after centrifugation.  Since the probe only takes cells from the bottom of the tube, it only picked up the transfused cells (group O).
Hope this makes it  clear to everyone.
 
 
 

Thank you everyone! Glad to be here