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Differential Count (B)
MessageFor Specimen Integrity during Extreme Weather see the “Lockbox Usage in Extreme Weather” document at the top of this page.
Test Code
DIFF
Alias/See Also
70239
CPT Codes
85004
Preferred Specimen
5 mL Whole Blood K3EDTA (Lavender Top Tube)and 2 air dried blood smears
Minimum Volume
1 mL (Microtainer® filled between the 2 lines)
Instructions
K3EDTA - Avoid hemolysis. Gently invert 10 times immediately at time of collection.
Transport Container
K3EDTA (Lavender top) Tube
Transport Temperature
Blood - Refrigerated
Specimen Stability
Room Temperature = 24 hours
Refrigerated = 48 hours
Frozen = not acceptable
Refrigerated = 48 hours
Frozen = not acceptable
Reject Criteria (Eg, hemolysis? Lipemia? Thaw/Other?)
Rejected for gross hemolysis, clotted, <1 mL, non-K3EDTA tube types, >48 hours old, frozen.
Methodology
Automated
Setup Schedule
Sunday - Saturday
Report Available
24 hours
Performing Laboratory
CompuNet Clinical Laboratories, LLC
2308 Sandridge Drive
Moraine, OH 45439
