WBC Counting Facts - 1
If the WBC
count is <3.0 x 109/L:
If the WBC
count is >30.0 x 109/L :
Any nucleated
RBC will be counted as:
A
smaller dilution is needed
Or
use average of 9 “W” sections
A
larger dilution is needed
White
Blood Cells
A corrected
WBC count must be done when:
5 or
more nRBCs per 100 WBC’s seen during the differential exam
A corrected
WBC count is calculated using:
WBCcorrected = patient’s WBC count x 100
100 + #nRBC’s per 100 WBCs
100 + #nRBC’s per 100 WBCs