Test Code LAB2995 White Blood Cell (WBC) Count with Differential, Whole Blood

Additional Codes

Test Name in EPIC	EPIC Test Code	Mnemonic
WBC/DIFFERENTIAL	LAB2995	WBC w/Diff

Methodology

Impedance, Direct Current (DC) detection method, and Particle Distribution Analysis (PDA).

Differential may be automated or manual depending on the instrument flagging criteria.

Specimen Requirements

Specimen Type: Whole blood

Container/Tube: Lavender top (EDTA) or EDTA microtainer

Requested Specimen Volume: 1 mL

Specimen Minimum Volume: 1.0 mL Lavender top (EDTA) tube; 0.3 mL EDTA microtainer

Specimen Transport Temperature

Ambient 24 hours/Refrigerate 48* hours OK/Frozen NO

*If manual differential is required, slides must be made within 8 hours of collection.

Day(s) Test Set Up

Monday through Sunday

Performing Laboratory

Minnesota	North Dakota	Wisconsin
Ada Hospital	52nd Ave Clinic (Fargo)	Ashland Clinic
Deer River Hospital	Fargo Hospital	Hayward Clinic
Duluth Family Medicine Clinic	Jamestown Clinic	Spooner Clinic
Ely Clinic	Mid Dakota Clinic 9th Street (Bismarck)	St. Mary's Hospital - Superior
Fosston Hospital	Mid Dakota Clinic Gateway (Bismarck)
Grand Rapids Clinic	Mid Dakota Clinic Kirkwood (Bismarck)
Hibbing Clinic	South University Clinic (Fargo)
Holy Trinity Hospital (Graceville)	Wahpeton Clinic
International Falls Clinic	West Fargo - The Lights Clinic
Moose Lake Hospital
Northern Pines (Aurora)
Park Rapids Clinic
Sandstone Hospital
SMDC Clinical Lab (Duluth)
St. Joseph's - Baxter Clinic
St. Joseph's - Brainerd Clinic
St. Joseph's Medical Center (Brainerd)
St. Mary's - Detroit Lakes Hospital
Virginia Hospital

Test Classification and CPT Coding

85004

Reference Values

TEST	AGE	ABSOLUTE
WBC:	0 – 14 days	8.0-15.4 x 10⁹/L
	15 days – 30 days	7.8-15.9
	31 days – 60days	7.1-15.0
	61days – 180 days	6.0-13.3
	0.5 yr – 2 years	5.9-13.5
	2yr-<6yr	4.8-13.3
	6yr-<12yr	4.3-11.4
	12yr-<18yr	3.8-9.8
	18 yr – 150 years	3.2-11.0
NEUTROPHIL:	0 – 14 days	1.6-6.7 x 10⁹/L
	15 days – 30 days	1.2-5.5
	31 days – 60days	0.8-4.7
	61days – 180 days	0.9-7.2
	0.5 yr – 2 years	1.2-7.2
	2yr-<6yr	1.5-8.3
	6yr-<12yr	1.6-7.8
	12yr-<18yr	1.5-7.4
	18 yr – 150 years	1.5-7.6
LYMPH:	0 – 14 days	1.7-8.0 x 10⁹/L
	15 days – 30 days	2.1-8.3
	31 days – 60days	2.3-9.1
	61days – 180 days	2.1-8.9
	0.5 yr – 2 years	1.5-7.8
	2yr-<6yr	1.1-5.7
	6yr-<12yr	0.9-4.2
	12yr-<18yr	0.9-3.3
	18 yr – 150 years	0.8-3.3
MONOCYTES:	0 – 14 days	0.5-1.7x 10⁹/L
	15 days – 30 days	0.2-1.4
	31 days – 60days	0.2-1.2
	61days – 180 days	0.2-1.1
	0.5 yr – 2 years	0.2-1.1
	2yr-<6yr	0.2-0.9
	6yr-<12yr	0.1-0.8
	12yr-<18yr	0.1-0.7
	18 yr – 150 years	0.2-0.9
EOSINOPHILS:	0 – 1 month	0.1 – 0.8 x 10⁹/L
	1 mo – 150 years	0.0-0.4
BASOPHILS:	0 – <18 years	0 – 0.1 x 10⁹/L
	18 yrs-150 years	0.0-0.1
Immature Granulocytes	0 – 2 days	0.0-0.28 x10⁹/L
	2 days – 14 days	0.0-0.27
	14days-30days	0.00-0.22
	31 days – 60days	0.0-0.09
	61days – 180 days	0.00-0.06
	0.5 yr – 2 years	0.00-0.14
	2yr-<6yr	0.0-0.06
	6yr-<12yr	0.00-0.04
	12yr-<18yr	0.0-0.03
	18 yr – 150 years	0.0-0.06
BANDS:	0 – 150 years	0 – 0.6
NRBCs:	0 - 3 days	0.06-1.30
	4 days - adult	0.03-0.11