Test Overview

Primary screening test given to new patients and annually thereafter.

Test Indications

Sample Collection

  1. Requires 5 mL Lavender-top (EDTA) tube (or microtainer for infants).
  2. Invert 6 times after drawing to prevent clotting.
  3. Protect sample from extreme heat or cold, submit to lab within 24 hours.

Your doctor or lab may have different instructions that supersede the above.

CPT CODES

CPT-CodeDescriptionComments
85025 Standard automatic differential count.
85027 Manual differential if warranted.
85007 Manual differential if warranted.

Labs Performing Test

Name of LabLab CodeEstimated CostProcessing TimeComments
SonoraQuest 3000 1 day 
SonoraQuest 35811 1 dayAlso includes Metabolic Panel. Also need 5 mL separator tube.

Costs cited are subject to change and may be reduced by insurance or cash discounts and increased by sample collection fees.

Theory

WBC

RBC

Hemoglobulin

Hematocrit

MCV

MCH

MCHC

RDW (Red Cell Distribution Count)

Platelet Count

MPV (Mean Platelet Volume)

Neutrophil Count

Lymphocyte Count

Monocyte Count

Eosinophil Count

Basophil Count

Neutrophil %

Lymphocyte %

Monocyte %

Eosinophil %

Basophil %


References

Unless specifically noted above, references used in the construction of this web page include the following:

[FDM] Lecture notes from Functional Medicine University.

[SCNM] Lecture notes from Southwest College of Naturopathic Medicine.

[UT] Lecture notes from the University of Tennessee graduate programs in Chemistry and Biochemistry.