Transcript
  • HEMATOLOGY AUTOMATION

  • Principles of Automated Cell Counts

    Electronic Impedance

    Optical Scatter

    Radiofrequency

    Flow Cytometry

    Hydrodynamic Focusing

    Laminar Flow

  • Electronic Impedance

    Changes in electrical resistance between two electrodes as cells pass through a sensing aperture

    Voltage changes

    Low voltage direct current resistance

  • Electronic Impedance

  • Radiofrequency

    High voltage electromagnetic current

    Measurable changes in RF signal proportional to cell interior density or conductivity

  • Optical Scatter

  • Manufacturers

    Beckman Coulter

    Sysmex

    Abbott

    Siemens

    ABX

  • Machine Principles

  • Histograms

  • Histograms

  • Histograms

  • Scattergram

  • Troubleshooting

  • Troubleshooting

  • Quality Assurance

    Preanalytic, Analytic and Postanalytic

    Quality Control- internal and external

    Statistical QC


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