WBC Count


Abbrev Code:WBC   
Order Code:LAB299Order Name:WBC Count
Synonyms:Leukocyte Count; White Blood Cell Count
CPT Codes: 85048 x1
Test Includes:WBC
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 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, CSC Mpls, Grand Itasca, Lakes, Northland, Range, Ridges, Southdale, St. John's, UMMC East Bank, UMMC/UMMCH-West Bank, Woodwinds)


Interpretive

Critical Range:Less than 1.0 or greater than 50.0 (x10e3/uL)
Reference Range:

Age

WBC (x 10e3/uL)

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

 

 

Use:White blood cell enumeration, evaluation of myelopoiesis, bacterial and viral infections, tissue injury.


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