Correction for WBC in automated CSF count.(Answering your questions)(Correction notice)

Medical Laboratory Observer | December 1, 2007| | Copyright

Q Our lab has recently begun to report cerebrospinal fluid (CSF) and body fluid cell counts from the Coulter (LH 750), and are using the procedure recommended by Beckman-Coulter. As the Coulter includes white blood cells (WBCs) in the red-blood-cell (RBC) count, my question concerns the potential for a false elevation of the fluid RBC count due to the inclusion of WBCs. It is not uncommon for fluids to have equal numbers of WBCs and RBCs or more WBCs than RBCs. At what point should the lab be correcting the Coulter RBC count on fluids for the presence of WBCs?

A ...

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