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CBC (includes Differential and Platelets)
Test Code6399
CPT Codes
85025
Includes
WBC, RBC, Hemoglobin, Hematocrit, MCV, MCH, MCHC, RDW, Platelet Count, MPV and Differential (Absolute and Percent - Neutrophils, Lymphocytes, Monocytes, Eosinophils, and Basophils)
If abnormal cells are noted on a manual review of the peripheral blood smear or if the automated differential information meets specific criteria, a full manual differential will be performed.
If abnormal cells are noted on a manual review of the peripheral blood smear or if the automated differential information meets specific criteria, a full manual differential will be performed.
Preferred Specimen
Whole blood from a full EDTA (lavender-top) tube
Minimum Volume
Microtainer 0.5 mL • 1 mL whole blood EDTA tube
Other Acceptable Specimens
Whole blood from a full EDTA (tan-top) tube
Instructions
Maintain specimen at room temperature. Do not refrigerate. If multiple draw, collect EDTA (lavender-top) tube last. Traumatic draw can introduce thromboplastin and trap WBC and platelets. Refrigeration can precipitate fibrin and trap WBC and platelets.
Note: If drawn with lead testing, EDTA (tan-top) is required.
Note: If drawn with lead testing, EDTA (tan-top) is required.
Transport Temperature
Room temperature
Specimen Stability
Room temperature: 48 hours
Refrigerated: 48 hours (may cause platelet clumping)
Frozen: Unacceptable
Refrigerated: 48 hours (may cause platelet clumping)
Frozen: Unacceptable
Reject Criteria (Eg, hemolysis? Lipemia? Thaw/Other?)
Hemolysis • Clotted • Received frozen
Methodology
Electronic Cell Sizing/Counting/Cytometry/Microscopy
Setup Schedule
Set up: Daily; Report available: 1 day
Reference Range
See Laboratory Report
Clinical Significance
A complete blood count is used as a screening test for various disease states to include: anemia, leukemia and inflammatory processes.
