Title: What is the meaning of high WBC count without fever? - Quora
Headings: What is the meaning of high WBC count without fever?
What is the meaning of high WBC count without fever?
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Mark Waliser

Content: There are two things about the “normal” range of WBC’s that most people do not know. One — the normal range is statistically defined. Therefore, a small portion, usually about 5%, of the population will have “high” or “low” values normally. Second — only WBC’s that are circulating in the main flow of the sampled vessel will be counted. The rest are static and adjacent to the vessel walls, and are referred to as “marginated” cells. Certain conditions having nothing to do with infection can alter margination leading to an artificially high or low WBC count. As you can see, WBC count is not as straightforward as it seems. MANY lab tests have similar limitations. Diagnostics are not for amateurs. Even the very experienced professionals get fooled all the time.