Sign in →

Test Code WBC White Blood Cell (WBC) Count, Blood, LAB299

Performing Laboratory

St. Luke's Hospital Cedar Rapids

Specimen Requirements

Container/Tube:
Preferred: 3 mL of EDTA whole blood
Specimen Volume: Minimum 0.5 mL of EDTA whole blood

Collection Instructions: Forward promptly.
 
 

Reference Values

0-6 days: 9.0-38.0 TH/mm3

7-29 days: 5.0-21.0 TH/mm3

1-3 months: 5.0-2.0 TH/mm3

4 months-1 year: 6.0-17.5 TH/mm3

2-3 years: 6.0-17.0 TH/mm3

4-6 years: 5.5-15.0 TH/mm3

7-12 years: 4.5-13.5 TH/mm3

≥13 years: 4.5-11.0 TH/mm3
Critical values

0-30 days: <5.0 TH/mm3 or >50.0 TH/mm3

>30 days: <2.0 TH/mm3 or >50.0 TH/mm3

Useful For

Determination of White Blood Cell Count

Day(s) Test Set Up

Monday through Sunday

Methodology

Electronic Resistance Detection

Test Classification and CPT Coding

85048