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TBLYM
T AND B CELL LYMPHOCYTE PANEL, BLOOD

Test Code TBLYM 
Test T AND B CELL LYMPHOCYTE PANEL, BLOOD 
Methodology Flow Cytometry 
Description Useful for evaluation of T, B, NK-cell lymphocyte subsets which is of diagnostic utility in assessing immune status. 
Specimen NOTE: Specimen must be received at the NorDx Scaborough facility by midnight Friday to guarantee processing within 48 hours of collection. Do not collect specimen on Friday afternoon for Saturday arrival at the NorDx Scarborough location or before a holiday weekend.

EDTA whole blood is required for this test.

Draw blood in a lavender-top (EDTA) tube. Send 5.0 mL EDTA whole blood. Forward promptly at ambient temperature only. SPECIMEN CANNOT BE FROZEN.

NOTE: DATE OF COLLECTION, AND CLINICAL INFORMATION ARE REQUIRED ON REQUEST FORM FOR PROCESSING. 

Reference Values Percentage and absolute counts of T-cell subsets reported with age-specific normal ranges. 
Analytic Time 1 Day 
Day(s) Test Set Up Monday through Friday 
CPT Code(s) 86355  B cells, total count
86357  Natural Killer (NK) cells, total count
86359  T cells, total count
86360  T cells, absolute CD4 and CD8 count

References