|Investigation||:||Lymphocyte Subset Quantitation|
|Reference range||:||see table|
Methodology: Flow cytometry
|Reference Range (N.B. applies to adults only)||Units|
|CD3 - Total T||0.60 - 3.00||x109/l|
|CD4 - T Helper||0.43 - 1.82|
|CD8 - T Cytotoxic/Suppressor||0.25 - 1.20|
|CD19 - Total B||0.12 - 0.67|
|CD56||0.09 - 0.60|
The specimen must not be refrigerated, it should be stored at room temperature and delivered to the laboratory within 24hrs of collection.
Samples must arrive in the lab by 3pm on Fridays, as this test is not available at weekends and samples need to be processed within 24 hours of collection.
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