A B C D E F G H I J K L M N O P Q R S T U V W X Y Z #

White Blood Cell Count & Differential

Message
Performing Lab: All Sites


Test Code
RH0282


Alias/See Also
Sunquest: WDIF


CPT Codes
85027; 85004

Includes
HEWBC; HEDF


Preferred Specimen
1.0 mL EDTA Whole Blood (lavender-top) tube
HP Clinics: 4.0 mL EDTA Whole Blood (Lavendar-top)


Minimum Volume
0.5 mL
HP Clinics: 1.0 mL


Other Acceptable Specimens
EDTA microtainer


Transport Temperature
Refrigerated


Specimen Stability
Room Temperature: 24 hours
Refrigerated: 48 hours


Reject Criteria (Eg, hemolysis? Lipemia? Thaw/Other?)
Frozen, Clotted, Gross hemolysis


Methodology
Automated

Setup Schedule
Hospital: Daily
Clinics: Monday - Friday


Report Available
Same Day


Limitations
HP Clinics: CG, HI, NK, & NSFPLL NSFPRV perform Hemoglobin and White Blood Count only


Reference Range
White Blood cells (WBC) Age Reference Range Critical
16 Years 4.0 - 11.0 k/µl <1.0 k/µl
or
>50.0 k/µl
8 Years 4.5 - 13.5 k/µl
6 Years 5.0 - 14.5 k/µl
2 Year 6.0 - 17.0 k/µl
1 Month 5.0 - 19.5 k/µl
7 Days 5.0 - 21.0 k/µl
Newborn 9.0 - 30.0 k/µl
 
Differential
Absolute Neutrophils (PMN) Age Reference Range 
21 Years 1.8 - 7.7 k/µl
16 Years 1.8 - 8.0 k/µl
6 Years 1.5 - 8.0 k/µl
1 Year 1.5 - 8.5 k/µl
6 Months 1.0 - 8.5 k/µl
7 Days 1.5 - 10.0 k/µl
Newborn 6.0 - 26.0 k/µl
Absolute Lymphocytes Age Reference Range 
21 Years 1.0 - 4.8 k/µl
16 Years 1.2 - 5.2 k/µl
6 Years 1.5 - 7.0 k/µl
4 Years 2.0 - 8.0 k/µl
1 Year 4.0 - 10.5 k/µl
1 Month 2.5 - 16.5 k/µl
7 Days 2.0 - 17.0 k/µl
Newborn 2.0 - 11.0 k/µl
Absolute Monocytes Age Reference Range 
18 Years 0.1 - 0.7 k/µl
<18 Years 0.0 - 1.0 k/µl
Absolute Eosinophils Age Reference Range 
All ages 0.0 - 0.5 k/µl
Absolute Basophils Age Reference Range 
All ages 0.0 - 0.2 k/µl
Absolute Immature Granulocytes Age Reference Range 
All ages 0.0 X 103/μL


Clinical Significance
See indivudal tests for clinical significance




The CPT Codes provided in this document are based on AMA guidelines and are for informational purposes only. CPT coding is the sole responsibility of the billing party. Please direct any questions regarding coding to the payor being billed. Any Profile/panel component may be ordered separately. Reflex tests are performed at an additional charge.