WBC Count and Differential


Abbrev Code:BWBCD   
Order Code:LAB3897Order Name:WBC and Differential Panel
Synonyms:Diff; WBC; BWBCD
CPT Codes: 85048 x1, 85004 x1
Test Includes:WBC, relative frequency (%) and absolute value of the whole blood cells. Test may include manual leukocyte differential, RBC morphology and/or PLT evaluation if reflex criteria is met.
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
Container:Purple (EDTA)
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  (Clinics, Grand Itasca, Lakes, Northland, Range, Ridges, Southdale, St. John's, UMMC East Bank, UMMC West Bank, Woodwinds)


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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