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Related Experiment Videos

ABO discrepancy caused by an auto anti-N.

L C Winn, P L Eska, A J Grindon

    Transfusion
    |November 1, 1975
    PubMed
    Summary

    An auto anti-N antibody caused a blood type discrepancy. This high-thermal antibody interfered with ABO blood group testing, impacting patient safety.

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    Area of Science:

    • Immunology
    • Transfusion Medicine

    Background:

    • Blood group antigen N is part of the MNSs blood group system.
    • ABO discrepancies can arise from various antibodies, including autoantibodies.

    Observation:

    • A high thermal amplitude auto anti-N antibody was identified.
    • This antibody led to a significant ABO cell and serum discrepancy during testing.

    Findings:

    • The auto anti-N antibody demonstrated potent reactivity at elevated temperatures.
    • The observed reactivity pattern mimicked other antibodies, complicating initial interpretations.

    Implications:

    • Accurate identification of autoantibodies is crucial for preventing transfusion reactions.
    • Standard blood bank protocols may require modification to detect high-titer, high-thermal amplitude autoantibodies.
    • This case highlights the importance of thorough antibody investigation in transfusion services.

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