PHAGOCYTIC INDEX OF ARNETH Meaning and
Definition
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The phagocytic index of Arneth is a term used in the field of hematology to describe a measurement of the relative proportion of different types of white blood cells called neutrophils, based on the appearance of their nuclear lobes. The Arneth index is calculated by counting the number of lobes in the nuclei of neutrophils under a microscope and representing this information as a percentage.
Neutrophils are a type of white blood cell that play a critical role in the immune system's response to infections. These cells have a multilobed nucleus, and the number of lobes may vary among individuals. The Arneth index categorizes neutrophils into five distinct subtypes based on the number of lobes present in their nuclei. The higher the number of lobes, the more mature the neutrophils are considered to be.
The phagocytic index of Arneth provides valuable information about the body's immune response and can be used to evaluate the presence of certain diseases or infections. Changes in the Arneth index can indicate potential variations in immune function, such as an increased demand for neutrophils due to infection or inflammation. The index is measured by examining a blood sample under a microscope and quantifying the different neutrophil subtypes present.
In summary, the phagocytic index of Arneth is a quantitative measurement used to assess the maturity and functionality of neutrophils by evaluating the number of lobes in their nuclei. This index is important in understanding immune responses and can aid in the diagnosis and monitoring of certain diseases or infections.
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The proportionate number per cubic millimeter of multinuclear neutrophils with nuclei of three or more lobes, which Arneth assumes to possess the greatest phagocytic power.
A practical medical dictionary. By Stedman, Thomas Lathrop. Published 1920.
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