Test Code WBC w/Diff White Blood Cell Count (WBC) with Differential

Methodology

Fluorescent Flow Cytometry

Specimen Requirements

Minimum of one full lavender-top (EDTA) tube or lavender-top (EDTA) MICROTAINER.

Transport ambient temperature.

Day(s) Test Set Up

Monday through Sunday

Reference Values

Test Name	Reference Values
WBC	4.0-10.0 × 10³/UL Critical values: ≤1.0 x 10³/UL or ≥30 × 10³/UL
ELECTRONIC DIFFERENTIAL
NEUTROPHILS	Newborn: 38.0-71.0% ≤11 months: 22.0-44.0% ≥1-12 years: 22.0-58.0% ≥13 years: 50.0-72.0%
LYMPHOCYTES	Newborn: 20.5-51.1% ≤11 months: 49.5-71.1% ≥1-12 years: 35.5-64.1% ≥13 years: 18.0-40.0%
MONOCYTES	≤12 years: 1.7-9.3% ≥13 years: 3.7-12.0%
EOSINOPHILS	≤12 years: 0.0-4.0% ≥13 years: 0.0-4.4%
BASOPHILS	≤12 years: 0.0-1.0% ≥13 years: 0.0-1.2%
IMMATURE GRANULOCYTE AUTO	0.0-0.5%
NUCLEATED RBC AUTO	0-3 days: 0.0-8.0% > 3 days: 0.0-1.0%

Test Classification and CPT Coding

85048

Performing Laboratory

Beebe Healthcare Laboratory

Performing Location

Margaret H. Rollins Laboratory
South Coastal Campus Laboratory
Specialty Surgical Hospital Laboratory