Arneth count
Arneth count is a method of classifying neutrophils, a type of white blood cell, based on the number of lobes in their nucleus. This count is named after the Austrian physician Joseph Arneth.
Overview[edit | edit source]
The Arneth count is used in the field of hematology to help diagnose certain medical conditions. It involves counting the number of lobes in the nucleus of a neutrophil, which can vary from two to five. The percentage of neutrophils with each number of lobes is then calculated.
Clinical significance[edit | edit source]
An increased percentage of neutrophils with more lobes (a "shift to the right") can indicate certain conditions, such as infection, inflammation, or cancer. Conversely, a higher percentage of neutrophils with fewer lobes (a "shift to the left") can suggest conditions such as vitamin B12 deficiency or folic acid deficiency.
Procedure[edit | edit source]
To perform an Arneth count, a blood sample is taken and a blood smear is prepared. The smear is then stained and examined under a microscope. The number of lobes in the nucleus of each neutrophil is counted and the percentages are calculated.
Limitations[edit | edit source]
While the Arneth count can provide useful information, it is not a definitive diagnostic tool. Other tests and clinical information are often needed to make a diagnosis. In addition, the count can be influenced by factors such as the age of the blood sample and the staining technique used.
See also[edit | edit source]
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