White cell count differential
Last updated: Friday, 04, June, 2010
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5 mL blood in EDTA; 2 mL blood in special paediatric EDTA tube.
Microscopic examination of stained blood film recording identity of 100 leucocytes.
Some automated haematology analysers provide a full or limited differential.
Total leucocyte count used to convert % figures to absolute counts.
| Reference Interval|
Results expressed as absolute values x 109/L. See Table 4.
To establish the numbers of individual leucocytes.
For the significance of abnormalities in individual leucocyte numbers see Neutrophilia,
Bain BJ. Blood Cells - A Practical Guide. 2nd ed. Blackwell Science 1995.