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Test Code 1WBC White Blood Cell Count

Additional Codes

EPIC LAB4227

Methodology

Sysmex XN-2000

Sample Type

Preferred Sample Type
Lavender top - EDTA Whole blood

 Centrifuge: No

Specimen Minimum Volume

Closed tube: 1 mL

Open tube: 300 µL

Open microtube: 160 µL

Specimen Stability

Temperature Time
Ambient (18-25°C) (store) 24 hours
Refrigerated (2-8°C) 48 hours

 

Reference Ranges

Normal Ranges
0 - 1
month		 1 - 12
months		 1 - 2
years		 2 - 10
years		 >10
years		 Units
4 - 21 3.5 - 13 2 - 12 3.5 - 11.5 3.8 - 11 109/L

 

Critical Values
<0.5 or >50.0 109/L

 

Rejection Criteria

  • Clotted specimens
  • Short draws
  • Grossly hemolyzed samples
  • Specimens outside of stability limits
  • Mislabeled/Unlabeled specimens

Availability

Performed STAT
24/7 Yes

 

Performing Laboratory

MultiCare Yakima Memorial Hospital Laboratory

Lab Department

Hematology

CPT Code

85048

LOINC

6690-2 WBC Auto (Bld) [#/Vol]