Leukocytosis: Difference between revisions
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'''Leukocytosis''' is an abnormally high level of the combination of all [[leukocyte]] (i.e., [[white blood cell]]) types. It may be due to a rise in all subtypes, or to a rise in one type; there are specific terms for a selective rise, such as [[eosinophilia]] or [[lymphocytosis]]. An abnormally low count is called [[leukopenia]]. | '''Leukocytosis''' is an abnormally high level of the combination of all [[leukocyte]] (i.e., [[white blood cell]]) types. It may be due to a rise in all subtypes, or to a rise in one type; there are specific terms for a selective rise, such as [[eosinophilia]] or [[lymphocytosis]]. An abnormally low count is called [[leukopenia]]. | ||
The normal count can vary among laboratories, but a typical normal adult range is 4,500-10,000 cells per microliter | The normal count can vary among laboratories, but a typical normal adult range is 4,500-10,000 cells per microliter. <ref>{{citation | ||
| url = http://www.nlm.nih.gov/medlineplus/ency/article/003643.htm | | url = http://www.nlm.nih.gov/medlineplus/ency/article/003643.htm | ||
| title = WBC count | | title = WBC count | ||
Revision as of 13:48, 6 August 2010
Leukocytosis is an abnormally high level of the combination of all leukocyte (i.e., white blood cell) types. It may be due to a rise in all subtypes, or to a rise in one type; there are specific terms for a selective rise, such as eosinophilia or lymphocytosis. An abnormally low count is called leukopenia.
The normal count can vary among laboratories, but a typical normal adult range is 4,500-10,000 cells per microliter. [1]
Elevated counts suggest infection, inflammation, or a disorder of the blood-forming apparatus. In such cases, the white blood cell differential, giving the relative percentage or absolute counts of the subtype, is needed to characterize the situation.