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Related Experiment Videos

Heparin assay and protamine titration

G Anido, D J Freeman

    American Journal of Clinical Pathology
    |October 1, 1981
    PubMed
    Summary
    This summary is machine-generated.

    A new method uses heparin and protamine sulfate neutralization to rapidly detect protamine excess or heparin levels in plasma. This technique offers accurate measurements for both low and high heparin concentrations.

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    Area of Science:

    • Biochemistry
    • Pharmacology
    • Clinical Chemistry

    Background:

    • Heparin and protamine sulfate are critical in managing anticoagulation and its reversal.
    • Accurate monitoring of heparin and protamine levels is essential for patient safety.
    • Existing methods for heparin monitoring may have limitations in speed or accuracy across different concentration ranges.

    Purpose of the Study:

    • To develop a rapid and accurate method for detecting excess protamine (anti-heparin activity) in plasma.
    • To simultaneously quantify both low and high concentrations of heparin.
    • To validate a novel back-titration approach using the Protopath technic for heparin assays.

    Main Methods:

    • Utilizing the direct neutralization reaction between heparin and protamine sulfate.

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  • Employing a back-titration technique with predetermined heparin amounts to assess protamine levels.
  • Implementing the Protopath technic for heparin assays to measure both low and high heparin concentrations.

    • Main Results:

    • The proposed method allows for the rapid detection of excess protamine in plasma specimens.
    • The approach enables simultaneous and accurate measurement of low heparin levels.
    • The methodology also provides an equally rapid and accurate assessment of high heparin concentrations.

    Conclusions:

    • The heparin-protamine neutralization principle offers a versatile platform for monitoring heparin activity.
    • This back-titration method provides a rapid and accurate alternative for assessing protamine and heparin levels.
    • The concept is potentially applicable to other heparin monitoring test systems, enhancing clinical utility.