The patient's white blood cell ( WBC )level is 4000 cells/microliter.The differential shows a neutrophil count of 65% and a band level of 5%.The absolute neutrophil count is

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The differential demonstrates the percentage of each type of WBC circulating in the bloodstream.The absolute neutrophil count is calculated by multiplying the total WBC count (without a decimal point)by the percentages (with decimal points)of polymorphonuclear leukocytes (polys; also called segs or neutrophils)and bands (immature neutrophils).
WBC $\times$ (segs + bands)
This gives an actual number that is translated into the categories of mild,moderate,or severe neutropenia.

The Patient's White Blood Cell ( WBC )Level Is 4000