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White Blood Cell Differential (Complete View)
|Test name||White Blood Cell Differential|
|Test Update Information|
|Test code||CBCD, WBCDF|
|Performed by||Parnassus & Mt. Zion Hematology|
|In House Availability||Test available 24 hours per day 7 days per week|
|Container type||Lavender top|
|Amount to Collect||3 mL blood|
|Sample type||EDTA whole blood|
|Preferred volume||3 mL blood|
|Min. Volume||1 mL blood (or 250 µL in a pedi-bullet)|
|UCSF Rejection Criteria|
|Ref Lab Rejection Criteria|
|Normal range|| Normal Absolute Counts in x109/L (95% confidence interval):
|Critical value||Neutrophils ≤ 1.0 x109/L
Note: A neutrophil count of ≤ 1.0 will be telephoned if a new finding not previously reported
|Synonyms||Eosnophil; Basophil; Neutrophiil; Granulocyte; Monocyte; Lymphocyte; Leukocyte differential; WBC differential|
|Turn around times||Stat 1 hour, Routine 4 hours|
|Additional information||All differential counts are routinely performed by automated flow cytometry.
Total neutrophils, both mature PMNs and immature forms, are counted. The presence of immature granulocytes/left shift (metamyelocytes and myelocytes) is reported, but not quantitated. Smears with this finding will be reviewed microscopically if a left shift has not already been noted within the previous 72 hours.
A manual differential will be initiated by the laboratory at a separate charge if an automated differential is technically inadequate for the analysis of a particular sample.
Manual differentials also include RBC morphology and platelet morphology.
|LDT or Mod FDA?|
|Include for internal use?|
|Last Updated||1/18/2012 2:28:24 PM|
|Lab Procedure Link|
If you have additional questions regarding this test, please call: 415-353-1667