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Laboratory Test Directory



Name Method Department Units
CBC Automated cell counter
Core Lab, Hematology

Battery Members

WBC count, RBC count, RBC indices, Hemoglobin, Hematocrit, and Platelet count

Specimen Requirements

Whole blood

Container Type Container Size Specimen Volume

Purple tube (EDTA)

3 mL 3 mL

Purple tube (EDTA)

Micro sample tube 0.5 mL

Room temperature - 8 hour(s)
Refrigerated - 24 hour(s)

Specimen Preparation

  • Do not centrifuge
  • Mix EDTA tube by gentle inversion immediately after collection

Reasons for Rejection

  • Not received within specified time frame
  • Not received at proper temperature
  • Over or under filled tube
  • Clotted specimen


Mix by gentle inversion immediately after collection. May be ordered with Differential Count. No additional blood is required if Differential Count is ordered on the same specimen.

CPT Code

  • 85027