Efficiency of the TK Culture System in the diagnosis of tuberculosis.

We have evaluated the efficiency of the TK Rapid Mycobacterial Culture System in isolating mycobacteria from clinical samples and in susceptibility testing. The TK Medium indicates mycobacterial growth by changing its color from red to yellow. During a 1-year period, 16,303 clinical samples were inoculated to TK selective (TK SLC) and Löwenstein-Jensen media (LJ).