CSF WBC Correction for Traumatic Tap

If peripheral WBC is normal, then use ratio of 1:500 or 1:750.

If peripheral WBC abnormal, then use the following formula:

  • WBCcsf = WBCblood x RBCcsf / RBCblood
  • or  WBCc * RBCb = WBCb*RBCc
  • or WBCc/RBCc = WBCb/RBCb

The result is the number of artificially introduced WBCs.

True WBCcsf is then calculated by subtracting the artificially introduced WBCs from the actual WBCcsf

Reference:

“WBC Correction For Traumatic Tap – Labce.Com, Laboratory Continuing Education”. Labce.com. N.p., 2016. Web. 17 Aug. 2016.

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