Sign in →

Test Code WBC WBC

Clinical System Name

White Blood Cell Count

Description

This test measures the total number of white blood cells in your body.  

Sample Requirements

Specimen: Whole Blood

Container(s):  Lavender/EDTA

Preferred Vol:  1.0-3.0 mL

Minimum Vol:  0.25 mL (no results guaranteed)

 

Notes: A Lavender top/EDTA vacutainer must contain at least 0.5 mL.

Processing Instructions

Reject due to:  Insufficient Quantity, Wrong Sample Collection, Clotted Sample

Spin: N

Aliquot: N

Temp: RT

Storage location:  Deliver to Core Lab Hematology bench.

 

Off-site collection: Store whole blood at room teperature and transport to Children's Lab immediately.  Samples > 24 hours old may be rejected.

Stability

 

Specimen Type Temperature Time
 Plasma RT

24 hrs

 Plasma 2-8oC

 48 hrs

 Plasma -20oC or -70oC

N/A

 

Availability

STAT Performed TAT
Y 24/7 1 H

 

Performing Laboratory

Seattle Children's Laboratory    

Department

Department:  Core Hematology

Phone Number: 206-987-2617

 

 

Reference Range

 

Test

Sex

Age Range

Normal Range

Unit

WBC

Both

0 - 1 Day

9.0 - 30.0

K/CMM

WBC

Both

1 Day - 1 Week

5.0 - 21.0

K/CMM

WBC

Both

1 Week - 1 Month

5.0 - 19.5

K/CMM

WBC

Both

1 Month - 1 Year

6.0 - 17.5

K/CMM

WBC

Both

1 - 2 Years

5.0 - 15.5

K/CMM

WBC

Both

2 - 4 Years

6.0 - 15.5

K/CMM

WBC

Both

4 - 6 Years

5.0 - 13.5

K/CMM

WBC

Both

6 - 10 Years

4.5 - 13.5

K/CMM

WBC

Both

10 - 14 Years

5.0 - 11.0

K/CMM

WBC

Both

14 Years - Adult

4.5 - 11.0

K/CMM

 

Methodology

Method:  Sysmex XN 3000: flow cytometry with semiconductive laser

Analytical Volume:  0.25mL whole blood

 

CPT Codes

85004

Related Tests