WBC Count and Differential


Sunquest Code:BWBCD  
Epic Code:LAB3897Epic Name:WBC and Differential Panel
Synonyms:Diff; WBC; BWBCD
CPT Code:----------CPTCODES HERE----------
Test Includes:WBC (relative frequency and absolute value); RBC morphology and platelet evaluation if manual differential count is performed.
Turnaround Time:Performed and reported 24 hours/day.


Collection Instructions

Specimen:Blood
Optimal Volume:2-3 mL EDTA tube or 0.5 mL in an EDTA microtainer (do not fill more than 0.5 mL)
Minimum\Peds Volume:1.0 mL EDTA tube or 0.3 mL in an EDTA microtainer
Collection Instructions:Immediately mix specimen 10 times by gentle inversion.
Causes for Rejection:Clotted specimen.


Processing and Shipping

Specimen Processing:Store in refrigerator.
Shipping Instructions:Ship at refrigerated temperature. If more than 24 hours is required for transport, 2 unstained whole blood smears must accompany whole blood EDTA specimen.
Test Performed at or Referral Lab Hematology  (Fairview Range - FRMC, UMMC-West Bank, UMMC-East Bank, Fairview Lakes - FLMC, Fairview Ridges - FRH, Fairview Northland - FNMC, Fairview Southdale - FSH, Fairview Clinics, Grand Itasca GICH)


Interpretive

Critical Range:

WBC

Less than 1.0 x 109/L

Greater than 50.0 x 109/L

Absolute Neutrophils

Less than 0.5 x 109/L

 

 

 

Reference Range:

Age

WBC (x 109/L)

0-3 d

9.0-35.0

4-8 d

5.0-21.0

9-30 d

5.0-19.5

1 mo-56 d

6.0-17.5

57 d-11 m

6.0-17.5

1 y

6.0-17.5

2-4 y

5.5-15.5

5-9 y

5.0-14.5

10-17 y

4.0-11.0

18 y and older F

4.0-11.0

18 y and older M

4.0-11.0

 

Absolute Diff Value (x 109/L)

 

Age

Neut

Lymph

Mono

Eos

Baso

IG

0-7 d

2.9-26.6

1.7-12.9

0-1.1

0-0.7

0-0.2

0-1.8

8-13 d

1.0-12.8

1.3-11.1

0-1.1

0-0.7

0-0.2

0-1.8

14-30 d

1.0-12.8

1.3-11.1

0-1.1

0-0.7

0-0.2

0-1.3

1-11 mo

1.0-12.8

2.0-14.9

0-1.1

0-0.7

0-0.2

0-0.8

1-5 y

0.8-7.7

2.3-13.3

0-1.1

0-0.7

0-0.2

0-0.8

6-9 y

1.3-8.1

1.1-8.6

0-1.1

0-0.7

0-0.2

0-0.4

10-17 y

1.3-7.0

1.0-5.8

0-1.3

0-0.7

0-0.2

0-0.4

18 y & older

1.6-8.3

0.8-5.3

0-1.3

0-0.7

0-0.2

0-0.4

 

Leukocyte Differential Count

Relative Frequency (%)

 

Age

Neut

Lymph

Mono

Eos

Baso

IG

0-7 d

32-76

19-36

0-10

0-6

0-1

0-0.28

8-13 d

19-61

26-53

0-10

0-6

0-1

0-0.28

14-30 d

19-61

26-53

0-10

0-6

0-1

0-0.22

1-11 mo

19-61

41-71

0-10

0-6

0-1

0-0.09

1-5 y

15-44

45-76

0-10

0-6

0-1

0-0.09

6-9 y

32-54

27-57

0-10

0-6

0-1

0-0.03

10-17 y

32-64

26-50

0-12

0-6

0-2

0-0.03

18 y & older

40-75

20-48

0-12

0-6

0-2

0-0.03

 

 



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