Casandra
Casandra Test Code LC75438Version 1 (DRAFT)
Performing Lab
White Blood Cell (WBC) Count
Also known as: Leukocyte Count, WBC, White Count
Clinical Use
Order TestUse
White cell enumeration; identify leukopenia and leukocytosis
Special Instructions
Not provided.
Limitations
Not provided.
Test Details
Methodology
Automated Analyzer
Biomarkers
WBC
AnalyteWBC
Concentration / Level • Quantitative (Continuous) (e.g., copies/mL, % expression)
LOINC Codes
Order Codes
- 6690-2 - WBC # Bld Auto
Result Codes
- 6690-2 - WBC # Bld Auto
Result Turnaround Time
5760 days
Related Documents
For more information, please review the documents below
Specimen Requirements
Specimen
Whole Blood
Volume
1 mL whole blood (minimum), tube fill capacity
Minimum Volume
1 mL whole blood
Container
Lavender-top (EDTA) tube
Collection Instructions
Invert tube 8 to 10 times immediately after tube is filled
Storage Instructions
Maintain specimen at room temperature
Causes for Rejection
Clotted specimens
Stability Requirements
| Temperature | Period |
|---|---|
| Room Temperature | Ambient: 24 hours |
| Refrigerated | Refrigerated: 48 hours |
| Frozen | Frozen: unacceptable |
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