WBC




Test Mnemonic

WBC

CPT Codes

  • 85048 - QTY (1)

LOINC ®

6690-2

Aliases

  • White Blood Cell Count

Performing Laboratory

Cleveland Clinic Laboratories


Specimen Requirements

Volume Type Container Collect Temperature Transport Temperature Special Instructions
2.5 mLWhole bloodEDTA (Lavender) RefrigeratedFill tube to at least half of fill volume.

Minimum Specimen Requirements

Volume Type Container Collect Temperature Transport Temperature Special Instructions
0.3 mL     

Stability

Environmental Condition Description
Ambient24 hours
Refrigerated48 hours
FrozenUnacceptable

Days Performed

Sun - Sat

Turnaround Time

8 hours

Methodology

Name Description
Automated Cell Counter 

Reference Range

WBC
Sex Age From Age To Type Range Range Unit
   Days14 DaysNormal8.04 - 15.40K/uL
 15 Days30 DaysNormal7.80 - 15.91K/uL
 31 Days60 DaysNormal7.05 - 14.99K/uL
 61 Days179 DaysNormal6.00 - 13.32K/uL
 6 Months23 MonthsNormal5.98 - 13.51K/uL
 2 Years5 YearsNormal4.86 - 13.38K/uL
 6 Years11 YearsNormal4.27 - 11.40K/uL
 12 Years14 YearsNormal3.84 - 9.84K/uL
 15 Years99 YearsNormal3.70 - 11.00K/uL
   Days30 DaysUrgent<4.00 or >30.00K/uL
~31 Days99 YearsUrgent<1.01 or >74.99 Outpatient: Call once every 24 hoursK/uL
~31 Days99 YearsUrgent>149.99 Inpatient: Call once every 24 hoursK/uL

Clinical Info

Evaluation of peripheral blood white cell count