Test/Investigation
Lymphocyte Surface Marker Analysis
Site(s) or Laboratory offering Test/Investigation
NNUH (Immunology)
Units
10^9L
Also Known as/Frequency of Test
T cell count; CD3 (T), CD4 (T helper),CD8 (T cytotoxic) lymphocyte subsets; TBNK; CD4/CD8 count; B cell count; CD19 count; CD16+56 (NK) cells, CD34 This test is also known as Lymphocyte subsets, HIV, T cell subsets.
Indications
Used for monitoring primary and secondary immunodeficiency. NB this test should not be used as a surrogate marker for HIV infection, CD4 count is often normal until late stage.
Comments/Precautions
MUST be received within 48hrs of venepuncture Store at room temp CD34’s are only assayed by prior arrangement with Haematology
Sample type
EDTA
Turnaround times (TAT) Urgent/Routine/GP or OPD
2 working days
Reference intervals (adult unless stated)
Please see issued report