Posted May 28, 201015 yr comment_25901 Good afternoon! Has anyone had any reports or experienced false positive results with Biotest Anti-A reagent? Thanks in advance.Beth Johnson
May 29, 201015 yr comment_25917 did you check the vial for turbidity? Is your negative control Negative?
May 30, 201015 yr comment_25936 Does the cells washed before testing? If not , there maybe anti-prenservation reagent antibodies in the plasma give the false postive result.And if my memeory don't treat me, ther is another posipility is Tn active like A antigen.
May 30, 201015 yr comment_25937 And antibodies in the anti-A reagent to red cells low frequency antigen.The first one we can wash the cells to avoid it, the second one we can test the cells with AB serum to detect the secret antigen exposue, in the third one, I think it maybe change to other reagent.
June 4, 201015 yr comment_26100 Good question Galvania - it is helpful to know what type of problem you are experiencing and also if the reagent is human-based or monoclonal. How do you know that there are false positives - previous patients? Edited June 4, 201015 yr by David Saikin wanted to qualify statement
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