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White Blood Cell Count
MessageFor Specimen Integrity during Extreme Weather see the “Lockbox Usage in Extreme Weather” document at the top of this page.
Test Code
WBC
Alias/See Also
70235;
WBC (Whole Blood);
White Bld Cnt
WBC (Whole Blood);
White Bld Cnt
CPT Codes
85048
Preferred Specimen
3 mL or 4 mL whole blood K2EDTA (lavender top) tube(s) or K2EDTA (Microtainer® lavender top) tube(s).
Minimum Volume
Minimum fill 1 mL (Microtainer® filled between the 2 lines).
Instructions
Avoid hemolysis. Gently invert 10 times immediately at time of collection.
Transport Container
K2EDTA (lavender top) tube
Transport Temperature
Refrigerated
Specimen Stability
48 hours
Reject Criteria (Eg, hemolysis? Lipemia? Thaw/Other?)
Rejected for gross hemolysis, clotted, <1 mL, non-K2EDTA tube type, >48 hours old, frozen.
Methodology
Automated Cell Counter
Setup Schedule
Sunday - Saturday
HE
HE
Reference Range
| SEX | AGE | Report Normals | Units |
| N/M/F | 0Y | 3.8 - 10.8 | K/MM3 |
| 3D | 9.4 - 34.0 | K/MM3 | |
| 2W | 5.0 - 21.0 | K/MM3 | |
| 1M | 5.0 - 19.5 | K/MM3 | |
| 6M | 5.0 - 18.0 | K/MM3 | |
| 2Y | 5.0 - 17.0 | K/MM3 | |
| 6Y | 5.0 - 16.0 | K/MM3 | |
| 12Y | 4.35 - 13.5 | K/MM3 | |
| 18Y | 4.5 - 13.0 | K/MM3 | |
| 133Y | 3.8 - 10.8 | K/MM3 |
Performing Laboratory
CompuNet Clinical Laboratories, LLC
2308 Sandridge Drive
Moraine, OH 45439
Last Updated: August 5, 2022
