WBC
Test Mnemonic
WBC
CPT Codes
- 85048 - QTY (1)
LOINC ®
6690-2
Aliases
- White Blood Cell Count
Performing Laboratory
Cleveland Clinic Laboratories
Specimen Requirements
| Volume | Type | Container | Collect Temperature | Transport Temperature | Special Instructions |
|---|---|---|---|---|---|
| 2.5 mL | Whole blood | EDTA (Lavender) | Refrigerated | Fill tube to at least half of fill volume. |
Minimum Specimen Requirements
| Volume | Type | Container | Collect Temperature | Transport Temperature | Special Instructions |
|---|---|---|---|---|---|
| 0.3 mL |
Stability
| Environmental Condition | Description |
|---|---|
| Ambient | 24 hours |
| Refrigerated | 48 hours |
| Frozen | Unacceptable |
Days Performed
Sun - Sat
Turnaround Time
8 hours
Methodology
| Name | Description |
|---|---|
| Automated Cell Counter |
Reference Range
| WBC | |||||
|---|---|---|---|---|---|
| Sex | Age From | Age To | Type | Range | Range Unit |
| ~ | Days | 15 Days | Urgent | <4.00 or >30.00 | K/uL | ~ | 15 Days | 31 Days | Urgent | <4.00 or >30.00 | K/uL | ~ | 31 Days | 61 Days | Urgent | <1.01 or >74.99 | K/uL | ~ | 31 Days | 61 Days | Urgent | >149.99 | K/uL | ~ | 61 Days | 6 Months | Urgent | <1.01 or >74.99 | K/uL | ~ | 61 Days | 6 Months | Urgent | >149.99 | K/uL | ~ | 12 Years | 15 Years | Urgent | <1.01 or >74.99 | K/uL | ~ | 12 Years | 15 Years | Urgent | >149.99 | K/uL | ~ | 15 Years | 999 Years | Urgent | <1.01 or >74.99 | K/uL | ~ | 15 Years | 999 Years | Urgent | >149.99 | K/uL | ~ | 2 Years | 6 Years | Urgent | <1.01 or >74.99 | K/uL | ~ | 2 Years | 6 Years | Urgent | >149.99 | K/uL | ~ | 6 Years | 12 Years | Urgent | <1.01 or >74.99 | K/uL | ~ | 6 Years | 12 Years | Urgent | >149.99 | K/uL | ~ | 6 Months | 2 Years | Urgent | <1.01 or >74.99 | K/uL | ~ | 6 Months | 2 Years | Urgent | >149.99 | K/uL |
Clinical Info
Evaluation of peripheral blood white cell count