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White Blood Cell Count
0040320
Ordering Recommendation
Mnemonic
WBC
Methodology
Automated Cell Count
Performed
Sun-Sat
Reported
Within 24 hours
New York DOH Approval Status
This test is New York DOH approved.
Submit With Order
ARUP Consult®
Disease Topics
Specimen Required
Patient Preparation
 
Collect
One 5 mL lavender (EDTA) or pink (K2 EDTA). 
Specimen Preparation
Mix specimens thoroughly.  (Min 0.25 mL) 
Storage/Transport Temperature
Refrigerated. 
Unacceptable Conditions
Frozen or clotted specimens. 
Remarks
 
Stability
Ambient: 1 day; Refrigerated: 3 days; Frozen: Unacceptable 
Reference Interval
Effective May 16, 2016
Age0 days1-6 days7-13 days14-29 days30-60 days2-11 months1-3 years4-5 years6-7 years8-13 years14-17 years18 years and older
Male (K/µL)9-309-345-215-205-19.55.5-176-175.5-15.55-14.54.5-13.54.5-134.3-11.3
Female (K/µL)9-309-345-215-205-19.55.5-176-175.5-15.55-14.54.5-13.54.5-134.3-11.3

Interpretive Data


Note
CPT Code(s)
85048
Components
Component Test Code*Component Chart NameLOINC
0040320White Blood Cell Count6690-2
* Component test codes cannot be used to order tests. The information provided here is not sufficient for interface builds; for a complete test mix, please click the sidebar link to access the Interface Map.
Aliases
  • WBC Count