| Test Name: |
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White Cell Count
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| Test Code(s): |
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WBC
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| CPT Code(s): |
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85048
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| Test Description: |
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Included In: White Cell Count and Differential, CBC with Differential, CBC without Differential
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| Methodology: |
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Flow Cytometry and Impedance
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| Days Performed: |
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Daily, 24 hours.
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| Turnaround Time: |
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Stat: 1 hour.
Routine: 4 hours.
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Specimen Requirements
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| Specimen: |
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Blood
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| Collection Container: |
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Preferred: K3EDTA-Lavender top
Also Acceptable:
K2EDTA-Lavender top
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| Collection Volume: |
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Preferred: 4 mL
Pediatrics: 1 mL
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| Sample Analyzed: |
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Whole Blood
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| Volume Required: |
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Preferred: 1 mL
Pediatrics: 0.25 mL in microtainer
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| Specimen Transport: |
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Transport specimen to laboratory at ambient temperature.
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| Unacceptable Criteria: |
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Clotted specimens are not acceptable.Tubes with <25% of fill volume.
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| Stability: |
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Ambient: 24 hours
Refrigerated: Not acceptable
Frozen: Not acceptable
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Interpretation
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Reference Interval:
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| Age |
WBC
K/uL
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| 0-29 days |
9.1-34.0 |
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| 30 days - 23 months |
6.0-14.0 |
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| 2-9 years |
4.0-12.0 |
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| 10-17 years |
4.0-10.5 |
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| 18 years and up |
3.8-10.5 |
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| Critical Calls: |
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View
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