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CBC, BLUE TOP RECOLLECTION
MessageMust collect both blue top (Na Citrate) and lavender top (EDTA).
Blue top cannot be shared with other laboratory testing at the time of draw. However, additional testing on the lavender tube may be performed once CBCBL is verified.
Test Code
CBCBT
Alias/See Also
CBC Blue; CBCBL
CPT Codes
85025
Includes
Includes: WBC; RBC; HGB; HCT; MCV; MCH; MCHC; RDW; PLT; WBC automated Diff
Preferred Specimen
1 Blue tube (Sodium Citrate) and
1 Lavender tube (EDTA)
1 Lavender tube (EDTA)
Minimum Volume
- 1mL whole blood EDTA
- Sodium Citrate tube must be filled to the etched line
Instructions
Do not centrifuge; Refrigerate until testing.
Transport Temperature
Refrigerate
Specimen Stability
- 2-8ºC up to 24 hours
Reject Criteria (Eg, hemolysis? Lipemia? Thaw/Other?)
Quantity not sufficient, clotted, or hemolyzed
Methodology
Pulse Measurement technology, Hydrodynamic Focusing, RF (Radio-Frequency) detection, and DC (Direct Current) detection.
Setup Schedule
M, T, W, Th, F, Sa, Sun
Report Available
Within 24 hours of sample collection.
Reference Range
See Additional Information below.
Clinical Significance
This test code is used for patients with prior platelet clumping noted on the CBC. This test code should not be ordered as a routine screening CBC.
Performed By
Alverno Laboratories
Performing Laboratory
Alverno Central Lab
NHM1 (Hematology, Coulter)
Additional Information
CBC Reference Ranges
Peripheral Blood Smear Pathologist Review
Standard CBC Workflow
Last Updated: January 16, 2025