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Test Code SFCNTS CSF Cell Count, LAB212

Performing Laboratory

St. Luke's Hospital Cedar Rapids

Specimen Requirements

Preferred Volume: 1mL spinal fluid in a screw-capped, sterile vial with no anticoagulant. Maintain sterility and forward promptly.

Minimum Volume: 0.5 mL spinal fluid

Reference Values

Colorless and clear
Red blood cells: 0/mm3

White blood cells: 0-10/mm3

Critical value: >10/mm3  White Blood Cells

Useful For

Normal CSF is colorless and clear.  In the presence of disease, CSF becomes hazy or cloudy because of the presence of cells, microorganisms, increased protein, or lipids.  Pink-red fluid indicates the presence of RBC.  This can be caused by subarachnoid hemorrhage, an infarct, or from a traumatic puncture. 

Day(s) Test Set Up

Monday through Sunday

Methodology

Manual Enumeration Using Hemocytometer/Microscope or Automated Analyzer for Cell Count

Differentiation of WBC is done Microscopically.

Test Classification and CPT Coding

89051