CD3/4/8, T Cell Subset, T4/T8 Ratio, CD4/8, Blood Lymphocyte Subset
Core Laboratory & Transfusion Medicine
Flow Cytometry
Blood
TCD48
Mount Sinai Hospital -Special Laboratory Requisition Report Form MS 331, Womens College Hospital -Flow Cytometry Requisition Womens College Hospital, Markham Stouffville Hospital (Oak Valley Health) -Flow Cytometry Requisition Markham Stouffville
Test is used when clinical information suggests a T-cell lymphocyte population abnormality. T lymph percentages and absoute counts may be used to evaluate immune competency
Specimens that have been refrigerated, severely hemolysed, clotted, under-filled, not maintained at room temperature, and greater than 24 hours old.
Specimen Acceptability and Transport Guidance
Beckman Coulter Navios Ex
Monday to Friday and no later than 3 pm on Fridays. No Flow Cytometry testing on weekends and statutory holidays. Specimen to be stored at room temperature.