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Cell Count, CSF

Collection Requirements

Source: CSF
Container: sterile cup or tube
Minimum volume: 1 mL

Special Instructions

Send to the Lab immediately
Must be processed within 60 minutes of collection

Turn Around Time

STAT: 1 hour
Routine: 2 hours

Availability

STAT
Routine

Includes

Appearance, WBC, RBC, and Diff if indicated

Algorithm

Reflex to differential if ≥ 5 TNC’s

Lab Processing Instructions

Specimen: CSF Do not spin
Refrigerate

Performing Laboratory

Adele Hall, Kansas

Adele Hall Lab Section

Hematology

Instrumentation/Methodology

Sysmex or Manual Microscopy

Reference Ranges

Appearance Colorless, clear
Total Nucleated Cell Count  
Adults 0-5 mononuclear/uL
Neonates 0-30 mononuclear/uL
RBC Count 0/uL
Lymphs  

Adults

Neonates

48-72%

17-23%

Monos  

Adults

Neonates

26-34%

56-84%

Polys  

Adults

Neonates

0-3%

0-5%

 

CPT

89050
89051 (if differential reported)