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CBC (includes Differential and Platelets)

Order Code HM001
Turnaround Time 24 Hours
Clinical Significance

CBC (includes Differential and Platelets) – A complete blood count is used as a screening test for various disease states to include: anemia, leukemia and inflammatory processes.

Related Documents

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.

Electronic Cell Sizing/Counting/Cytometry/Microscopy
Reference Range(s)
See Laboratory Report
Alternative Name(s)
Complete Blood Count
Preferred Specimen(s)
Whole blood from a full EDTA (lavender-top) tube
Minimum Volume

Microtainer 0.5 mL
1 mL whole blood EDTA (lavender-top) tube

Collection 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.

Transport Container
EDTA (lavender-top) tube
Specimen Stability
Temperature Period
Room temperature 1 Day
Refrigerated 3 days
Frozen Unstable
Freeze/thaw cycles Unstable
Reject Criteria
  • Hemolysis
  • Clotted
  • Received frozen