Calculation
In the above, we assume that the CBC from which we are reading WBC is in cells/mL; so the above 1000 is a conversion factor to convert to cells/µL.
The unit of ANC is cells per microlitre (abbreviated µL; a microlitre is equal to one cubic millimetre) of blood.
A slightly easier calculation is (%neutrophils + %bands) x (WBC)/100,000
Read more about this topic: Absolute Neutrophil Count
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