We have also seen positive reactions spinning down to negative when respinning the gel card while finishing a second screen on a new patient on the same card. We have found that anything truly positive does not spin away. The positive reactions we had that spun away were either rouleaux or a non specific cold agglutinin. We have also found that any agglutination, no matter how little, is an antibody.
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Gel card with 1+ reactions showing negative after spinning a second time
in Immunohematology Reference Laboratories
Posted
We have also seen positive reactions spinning down to negative when respinning the gel card while finishing a second screen on a new patient on the same card. We have found that anything truly positive does not spin away. The positive reactions we had that spun away were either rouleaux or a non specific cold agglutinin. We have also found that any agglutination, no matter how little, is an antibody.