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HelpTest Code DIFF Differential Leukocyte Count, Blood
Methodology
Manual—Microscopic Examination of Cells
Includes neutrophilic segs, lymphocytes, monocytes, eosinophils,
basophils, erythrocyte morphology, and platelets.
Specimen Requirements
Specimen must arrive within 24 hours of draw.
Draw blood in a lavender-top (EDTA) tube(s) or a CAPIJECT® (EDTA) tube(s), and send 5 mL of EDTA whole blood. Forward unprocessed whole blood promptly.
Reject Due To
|
Hemolysis |
Mild: |
ok |
Gross: |
ok |
|
Lipemia |
Mild: |
ok |
Gross: |
ok |
|
Icterus |
Mild: |
ok |
Gross: |
Reject |
Reference Values
| Absolute Neutrophils (103/uL) | ||
| Age | Male | Female |
| >0d | 7.80-14.50 | 7.80-14.50 |
| >1d | 1.75-7.20 | 1.75-7.20 |
| >5d | 1.80-5.40 | 1.80-5.40 |
| >28d | 2.10-8.00 | 2.10-8.00 |
| ≥1yr | 1.50-6.90 | 1.50-6.90 |
| ≥4yr | 1.50-7.60 | 1.50-7.60 |
| ≥10yr | 1.80-7.20 | 1.80-7.20 |
| ≥18yr | 1.50-7.90 | 1.50-7.90 |
| Absolute Lymphocyte (103/uL) | ||
| Age | Male | Female |
| >0d | 2.00-7.20 | 2.00-7.20 |
| >1d | 1.90-6.60 | 1.90-6.60 |
| >5d | 2.85-9.10 | 2.85-9.10 |
| >28d | 4.00-10.50 | 4.00-10.50 |
| ≥1yr | 2.50-8.60 | 2.50-8.60 |
| ≥4yr | 1.80-8.40 | 1.80-8.40 |
| ≥7yr | 1.50-5.00 | 1.50-5.00 |
| ≥13yr | 1.50-4.50 | 1.50-4.50 |
| ≥18yr | 1.10-3.40 | 1.10-3.40 |
| Absolute Monocytes (103/uL) | ||
| Age | Male | Female |
| >0d | 0.00-1.90 | 0.00-1.90 |
| >1d | 0.00-1.70 | 0.00-1.70 |
| >5d | 0.10-1.70 | 0.10-1.70 |
| >28d | 0.21-1.60 | 0.21-1.60 |
| ≥1yr | 0.15-1.20 | 0.15-1.20 |
| ≥4yr | 0.32-1.10 | 0.32-1.10 |
| ≥12yr | 0.27-1.10 | 0.27-1.10 |
| ≥15yr | 0.35-1.00 | 0.35-1.00 |
| ≥18yr | 0.30-1.10 | 0.30-1.10 |
| Absolute Eosinophils (103/uL) | ||
| Age | Male | Female |
| >0d | 0.20-0.70 | 0.20-0.70 |
| ≥18yr | 0.00-0.50 | 0.00-0.50 |
| Absolute Basophil (103/uL) | ||
| Age | Male | Female |
| >0d | 0.03-0.11 | 0.03-0.11 |
| >28d | 0.02-0.17 | 0.02-0.17 |
| ≥1yr | 0.02-0.12 | 0.02-0.12 |
| ≥4yr | 0.00-0.20 | 0.00-0.20 |
| ≥18yr | 0.00-0.30 | 0.00-0.30 |
| Atypical Lymphocytes (%) | ||
| Age | Male/Female | |
| >0d | 0-6 | |
| Band Neutrophils (%) | ||
| Age | Male/Female | |
| >0d | 0-5 | |
Day(s) Test Set Up
Monday through Sunday
CPT Coding
85007
Performing Laboratory
Huntsville Hospital Laboratory/Madison Hospital Laboratory
Specimen Stability Information
|
Specimen Type |
Temperature |
Time |
| Whole blood, EDTA | RT | 24 hrs |
|
|
Refrigerated |
48 hrs |