Test Code LAB299 White Blood Cell (WBC) Count, Blood
Useful For
- A screening test for conditions such as such as infection, inflammation, or a disease that affects the production or survival of WBCs
- To monitor treatment of a blood disorder
- To monitor therapy known to affect WBCs
Methodology
Automated
Performing Laboratory
Bozeman Health Laboratory Services
Specimen Requirements
Specimen Type: Whole blood
Container/Tube: Lavender top (EDTA) or lavender top (EDTA) Microtainer
Specimen Volume: 4 mL
Pediatric Volume: 1 full Microtainer
Collection Instructions: If there is a delay in transport of >24 hours, refrigerate specimen and send specimen refrigerated.
Specimen Rejection: Unrefrigerated specimen> 24 hours old. Refrigerated specimen >48 hours old.
Specimen Transport Temperature
Ambient <24 hours/Refrigerated <48 hours
Specimen Stability
Specimen Type | Temperature | Time |
---|---|---|
Whole blood (EDTA) | Ambient | 24 hours |
Refrigerated | 48 hours |
Reference Values
Component | Age Break | Normal Range | Critical Values |
---|---|---|---|
WBC | ≥ 18 years | 3.2 - 10.8 K/uL | >29.9 K/uL |
Day(s) Test Set Up
Monday through Sunday
Test Classification and CPT Coding
85048