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HelpTest Code 4011640 WBC, Blood (WBC Count)
Specimen Requirements
4.0 mL whole blood
Container
EDTA (lavender top) tube
Minimum Volume
300 µL in a regular tube or 160 µL in a microtainer tube
Stability
24 hours at room temperature, 36 hours at 2-8°C
Analytical Time
Same day
Available stat
Sample Retention Time
7 days
Method
Flow Cytometry
CPT Code
85048
Performing Laboratory
Springfield Hospital Laboratory
Reject Due To
Improperly labeled sample
Clotted samples
Gross hemolysis
Samples drawn above an IV line