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A white blood cell differential is a medical laboratory test that provides information about the types and amounts of white blood cells in a person's blood. The test, which is usually ordered as part of a complete blood count (CBC), measures the amounts of the five normal white blood cell types – neutrophils, lymphocytes, monocytes, eosinophils and basophils – as well as abnormal cell ...
An excess of white blood cells is usually due to infection or inflammation. Less commonly, a high white blood cell count could indicate certain blood cancers or bone marrow disorders. The number of leukocytes in the blood is often an indicator of disease, and thus the white blood cell count is an important subset of the complete blood count.
The total white blood cell count is usually reported in cells per microlitre of blood (/μL) or 10 9 cells per litre (× 10 9 /L). [4] In the white blood cell differential, the different types of white blood cells are identified and counted. The results are reported as a percentage and as an absolute number per unit volume.
Leukocytosis is a condition in which the white cell count is above the normal range in the blood. [1] [2] It is frequently a sign of an inflammatory response, [3] most commonly the result of infection, but may also occur following certain parasitic infections or bone tumors as well as leukemia.
The red blood cell indices can provide information about the cause of a person's anemia such as iron deficiency and vitamin B12 deficiency, and the results of the white blood cell differential can help to diagnose viral, bacterial and parasitic infections and blood disorders like leukemia. Not all results falling outside of the reference range ...
The anticonvulsant drug, lamotrigine, has been associated with a decrease in white blood cell count. [2] The FDA monograph for metronidazole states that this medication can also cause leukopenia, and the prescriber information suggests a complete blood count, including differential cell count, before and after, in particular, high-dose therapy. [3]
The white blood cell differential can reveal abnormalities in the proportions of white blood cell types, such as neutrophilia and eosinophilia, as well as the presence of abnormal cells such as the circulating blast cells seen in acute leukemia. [4] Qualitative abnormalities of white blood cells, like toxic granulation, are also visible on the ...
A white blood cell differential is a blood test that provides information about the types and amounts of white blood cells in a person's blood. doesn't sound very good. (Note, it's necessary to say "in a person's blood" because there are tests for white blood cells in, for example, bone marrow and body fluids as well).