The T-SPOT.TB test has been evaluated for the processing of blood samples within 8 hours of venipuncture. With the T-Cell Select reagent kit, blood samples stored or maintained at room temperature (18 – 25 °C) for up to 54 (0 – 54) hours post venipuncture can be used with the T-SPOT.TB test. The T-Cell Select reagent may also enable automation of the cell isolation process and reduce sample separation time relative to preparation via the density gradient separation methodology. With the T-Cell Select reagent kit, blood samples may be shipped and/or stored overnight at room temperature (18 – 25 °C), up to 54 (0 – 54) hours post venipuncture.
A substance or reactant intended to be used on clinical specimens for the isolation of T-lymphocytes from a white cell preparation using magnetic beads to achieve component separation.