Monitor response to CD3 immunosuppressive therapy.
Quantitative Flow Cytometry
Draw specimen before administering immunosuppressive medications.
Green (Sodium or Lithium Heparin), Lavender (EDTA), or Pink (K2EDTA).
Transport 5 mL whole blood. (Min: 0.5 mL)
Room temperature. Also acceptable: Refrigerated.
Clotted or hemolyzed specimens.
Specimens must be analyzed within 72 hours of collection.
New York State Clients: EDTA specimens must be analyzed within 30 hours of collection. Heparin specimens must be analyzed within 48 hours of collection.
Ambient: 72 hours; Refrigerated: 72 hours; Frozen: Unacceptable
New York State Clients: EDTA: Ambient: 30 hours; Refrigerated: 30 hours; Frozen: Unacceptable
Heparin: Ambient: 48 hours; Refrigerated: 48 hours; Frozen: Unacceptable
Effective February 20, 2018
||17 years and older
|Abs CD3||633-2532 cells/µL|
In this test, the percent CD3 cells are those cells that are positive for both CD3 and the alpha-beta chain of the T-cell receptor (TCR) and are presumed immunologically competent.
Analyte Specific Reagent (ASR)
THIS TEST IS FOR TRANSPLANT PATIENTS ONLY. Effective immunosuppressive therapy with OKT3 can be documented by verifying CD3 antigen removal using this test. For immunocompromised patients, order Lymphocyte Subset Panel 4 - T-Cell subsets Percent & Absolute (0095950).
|Component Test Code*||Component Chart Name||LOINC|
|0095248||% CD3+/TCR ab+||8124-0|
|0095249||Absolute CD3+/TCR ab+||8122-4|
- CD3 absolute
- immunosuppresive therapy monitoring