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HelpTest Code DIFFONLY Manual White Blood Cell (WBC) Differential, Blood
Specimen Requirements
Manual differential slide should be prepared within 1 hour of draw.
Draw blood in a lavender-top (EDTA) tube(s), and send 0.5 mL of EDTA whole blood refrigerated.
Performing Laboratory
Conway Regional Clinical Laboratory ServicesReference Values
SEGMENTED NEUTROPHILS (“SEGS,” “POLYS”)55-75%
LYMPHOCYTES
20-35%
MONOCYTES
0-9%
EOSINOPHILS
1-3%
BASOPHILS
0-1%
Methodology
Manual MicroscopyNote: If other testing (white blood count, absolute differential, etc.) is desired, order #CBCD “Complete Blood Count with Manual Differential, Blood.”