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Differential Leukocyte Count, Blood
MessageTest Code
20
CPT Codes
85007
Preferred Specimen
Container/Tube: Lavender-top (EDTA) tube(s)
Specimen Volume: 4 mL of blood
Instructions
Includes neutrophils, band cells, eosinophils, lymphocytes, monocytes, basophils, and RBC morphology.
Transport Temperature
Refrigerate <=24 hours
Specimen Stability
Specimen must arrive within 24 hours of draw.
Methodology
Microscopic Examination
Setup Schedule
Monday through Sunday
Reference Range
NEUTROPHILS
0-6 days: 32-62%
7 days-14 years: 16-60%
15-21 years: 25-70%
>=22 years: 50-70%
BAND CELLS
0-6 days: 10-20%
7 days-14 years: 5-11%
>=15 years: 0-10%
EOSINOPHILS
0-14 years: 0-8%
>=15 years: 1-5%
LYMPHOCYTES
0-6 days: 25-35%
7 days-1 year: 25-75%
2-4 years: 45-75%
5-14 years: 25-55%
>=15 years: 25-45%
MONOCYTES
0-4 years: 0-12%
5-14 years: 0-10%
>=15 years: 1-12%
BASOPHILS
0-1%
0-6 days: 32-62%
7 days-14 years: 16-60%
15-21 years: 25-70%
>=22 years: 50-70%
BAND CELLS
0-6 days: 10-20%
7 days-14 years: 5-11%
>=15 years: 0-10%
EOSINOPHILS
0-14 years: 0-8%
>=15 years: 1-5%
LYMPHOCYTES
0-6 days: 25-35%
7 days-1 year: 25-75%
2-4 years: 45-75%
5-14 years: 25-55%
>=15 years: 25-45%
MONOCYTES
0-4 years: 0-12%
5-14 years: 0-10%
>=15 years: 1-12%
BASOPHILS
0-1%
Performed By
CoxHealth