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WBC Count (Complete View)

Item Value
Test name WBC Count
Test Update Information
Approval req'd? No
Available Stat? Yes
Utilization Guidelines
Test code CBC, CBCD, WBC, WBCDF
Test group
Performed by Parnassus & Mt. Zion Hematology
Sendout?
In House Availability Test available 24 hours per day 7 days per week
Method
Patient Preparation
Collection Instructions
Container type Lavender top
Amount to Collect 3 mL blood
Sample type EDTA whole blood
Preferred volume
Min. Volume 1 mL blood (or 250 µL in a pedi-bullet)
UCSF Rejection Criteria
Processing notes
Ref Lab Rejection Criteria
Units x109/L
Normal range
0-24 hours 9.0-38.0 x109/L
24 hours-1 wk 5.0-34.0 x109/L
1 wk-6 months 5.0-21.0 x109/L
6 months -4 years 5.5-17.5 x109/L
4-14 years 4.5-15.5 x109/L
14-21 years 4.5-13.2 x109/L
> 21 years 3.4-10.0 x109/L
Critical value ≤ 1.5 x109/L or ≥ 100.0 x109/L will be telephoned if a new finding within the past 24 hours.
Synonyms Leukocyte count; white cell count; white blood cell count
Stability
Turn around times STAT 1 hour, Routine 4 hours
Reflex?
Additional information
CPT coding
Medical Necessity?
LOINC code
LDT or Mod FDA?
Include for internal use?
Last Updated 8/24/2011 12:30:37 PM
Entry Number 1008
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