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White Blood Cell Count
Test CodeWBC
CPT Codes
85048
Preferred Specimen
WHOLE BLOOD, EDTA
Minimum Volume
250 uL microtainer or 1 ml lavender top tube
Transport Container
LAV/1
Transport Temperature
ROOM TEMP OR 2-8 DEGREES, C
Specimen Stability
48 hours at 4-8 degrees C; 24 hours at Room Temp
Reject Criteria (Eg, hemolysis? Lipemia? Thaw/Other?)
Specimens with clots, fibrin strands, platelet clumps, hemolyzed samples, samples drawn above a line
Methodology
Electronic Resistance Detection with Enhanced Hydrodynamic Focusing
Setup Schedule
24/7
Report Available
24
Limitations
lipemia, icterus, cold agglutinin
Reference Range
0DAY 9.0 - 30.0
1DAY 9.4 - 30.0
2DAY 5.0 - 21.0
8DAY 5.0 - 20.0
15DAY 5.0 - 19.5
2MONTHS 5.5 - 18.0
3MONTHS TO ADULT 4.8 - 11.0