Hematology Analyzer Principle | How a CBC analyzer works | Automated Cell Counter | Hindi

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  • čas přidán 28. 08. 2024
  • In this video,
    I explained about CBC analyzer, How a CBC analyzer works ?
    CBC analyzer Principle, CBC analysis, CBC analysis interpretation,
    Hematology analyzers or CBC analyzer are used to conduct a complete blood count (CBC), A complete blood count includes red blood cell (RBC), white blood cell (WBC), hemoglobin, and platelet counts, as well as hematocrit levels and below mentioned parameters
    RBC distribution width
    Mean corpuscular volume
    Mean corpuscular hemoglobin
    Mean corpuscular hemoglobin concentrations
    WBC differential count in percentage and absolute value
    Platelet distribution width
    IT involves used of advance technique like mentioned below
    -Flow Cytometry
    -Spectrophotometry
    -Electrical Impedance (Coulter's Principle)
    Types
    3-Part CBC analyzer or Differential Cell Counter-
    A 3-part differential cell counter uses Coulter's Principle to find the size and volume of the cell. The sample is lysed and dissolved into an electrolyte solution in a container, which also holds a smaller container. The smaller container has 2 pumps running to and from its solution, one creating a vacuum and the other replacing the lost solution. The smaller container has a small hole (an orifice) near the bottom of the container. Coulter's principle is applied through the use of two electrodes. One electrode (the internal electrode) is within the smaller container, and the other (the external electrode) is outside of the smaller container but within the electrolyte/sample solution. As the vacuum draws the sample cells through the orifice, the cell momentarily causes electrical resistance to the current as it passes through the orifice. This resistance is recorded, measured, amplified, and processed which can then be interpreted by the computer into a histogram. The 3-part analyzer is able to differentiate between 3 types of WBC's, neutrophils, lymphocytes, Mixed cells
    5-Part CBC analyzer or Differential Cell Counter-
    This type of hematology analyzer utilizes both Coulter's Principle and flow cytometry to determine the granularity, diameter, and inner complexity of the cells. Using hydrodynamic focusing, the cells are sent through an aperture one cell at a time. During this, a laser is directed at them, and the scattered light is measured at multiple angles. The absorbance is also recorded. The cell can be identified based on the intensity of the scattered light and the level of absorbance. A 5-part cell counter can differentiate all WBC types (neutrophils, lymphocytes, basophils, eosinophils, and monocytes). 5-part analyzers are more expensive than 3-part analyzers, but provide more in-depth information about the sample. Specific jobs, such as allergy testing, require 5-part differential analysis. However, most medical tasks can be completed with the 3-part analyzer.
    I have explained about Internal mechanism rather than pressing button on a analyzer
    Thank You,
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