Test ID: TCP
T-Cell Subsets, Naive, Memory and Activated
NY State Approved 
Indicates the status of NY State approval and if the test is orderable for NY State clients.
Useful For Suggests clinical disorders or settings where the test may be helpful
Determining the presence of naive, memory, and activated T cells in various clinical contexts including autoimmune diseases, immunodeficiency states, T-cell recovery posthematopoietic stem cell transplant, DiGeorge syndrome, and as a measure for T-cell immune competence
Naive T-cells results can be used a surrogate marker for thymic-derived T-cell reconstitution, when used in conjunction with assessment of T-cell receptor excision circles (TREC/87959 T-Cell Receptor Excision Circles [TREC] Analysis for Immune Reconstitution)
Assessing a patient's relative risk for infections
Evaluation of patients with cellular or combined primary immunodeficiencies
Evaluation of T-cell reconstitution after hematopoietic stem cell transplant, chemotherapy, biological therapy, immunosuppression or immunomodulator therapy
Evaluation of patients with autoimmune diseases
Evaluation of HIV-positive patients for naive and memory subsets
Evaluation of T-cell immune competence (presence of memory and activated T cells) in patients with recurrent infections
Method Name A short description of the method used to perform the test
Flow Cytometry
Reporting Name A shorter/abbreviated version of the Published Name for a test; an abbreviated test name
Aliases Lists additional common names for a test, as an aid in searching
CD27+ T cells
CD28+ T cells
CD4+ T cells
CD45RA
CD45RO
CD62L+ T cells
CD8+ T cells
Central memory T cells
DiGeorge syndrome T cells
Effector memory T cells
HIV T cells
Immune competence T cells
Immune reconstitution T cells
Infection T cells
Intestinal lymphangiectasia T cells
Memory
MHC class II-positive T cells
Naive
T-cell depletion T cells
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